David H. Ley

Works (50)

Updated: August 16th, 2024 13:37

2019 journal article

Phenotypic diversity in an emerging mycoplasmal disease

MICROBIAL PATHOGENESIS, 138.

By: K. Perez*, N. Mullen*, J. Canter*, D. Ley n & M. May *

author keywords: Mycopiasma gallisepticum; Sialidase; Cytadherence; Adherence; Sialic acid; Biofilm; Hydrogen peroxide; Virulence factors; Pathogenesis
MeSH headings : Animals; Bacterial Adhesion; Biofilms / growth & development; Biological Variation, Population; Biomarkers; Bird Diseases / diagnosis; Bird Diseases / epidemiology; Bird Diseases / metabolism; Bird Diseases / microbiology; Communicable Diseases, Emerging / diagnosis; Communicable Diseases, Emerging / epidemiology; Communicable Diseases, Emerging / metabolism; Communicable Diseases, Emerging / microbiology; Hydrogen Peroxide / metabolism; Mycoplasma / classification; Mycoplasma / physiology; Mycoplasma Infections / veterinary; Neuraminidase / metabolism; Phenotype; Public Health Surveillance; United States / epidemiology; Virulence
TL;DR: Quantitative variance in virulence-associated traits is consistent with within-host evolutionary adaptation in response to a change in ecological niche by a parasitic pathogen. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: April 20, 2020

2018 journal article

Incomplete host immunity favors the evolution of virulence in an emergent pathogen

SCIENCE, 359(6379), 1030-+.

By: A. Fleming-Davies *, P. Williams *, A. Dhondt *, A. Dobson *, W. Hochachka *, A. Leon *, D. Ley n, E. Osnas *, D. Hawley *

MeSH headings : Animals; Bird Diseases / microbiology; Bird Diseases / prevention & control; Evolution, Molecular; Finches; Host-Pathogen Interactions / immunology; Immunologic Memory; Models, Immunological; Mycoplasma Infections / microbiology; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / pathogenicity; Virulence / genetics
TL;DR: Empirical and modeling evidence is presented that incomplete immunity promotes the evolution of higher virulence in a natural host-pathogen system and the same immune systems that protect hosts from infection can concomitantly drive the development of more-harmful pathogens in nature. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2018 journal article

Mycoplasmosis of House Finches (Haemorhous mexicanus) and California Scrub-Jays (Aphelocoma californica) in a Wildlife Rehabilitation Facility with Probable Nosocomial Transmission

JOURNAL OF WILDLIFE DISEASES, 55(2), 494–498.

By: K. Rogers*, D. Ley n & L. Woods*

author keywords: California Scrub-jay; House Finch; Mycoplasma gallisepticum; Mycoplasma sturni; Mycoplasma synoviae; wildlife rehabilitation facility
MeSH headings : Animals; Bird Diseases / microbiology; Bird Diseases / transmission; California / epidemiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; Conservation of Natural Resources; Cross Infection; Disease Outbreaks / veterinary; Hospitals, Animal; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Songbirds
TL;DR: An outbreak of conjunctivitis in juvenile House Finches and California Scrub-jays at a central California, US wildlife rehabilitation facility suggested that M. gallisepticum-infected juvenile finches admitted to and maintained in a multispecies nursery likely resulted in transmission within the facility to healthy juvenile finch and scrub-Jays. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: April 29, 2019

2017 journal article

Attenuated Phenotype of a Recent House Finch-Associated Mycoplasma gallisepticum Isolate in Domestic Poultry

INFECTION AND IMMUNITY, 85(6).

By: K. Pflaum*, E. Tulman *, J. Beaudet*, X. Liao*, K. Dhondt*, A. Dhondt *, D. Hawley *, D. Ley n, K. Kerr, S. Geary *

author keywords: Mycoplasma gallisepticum; chicken; house finch; pathology; virulence
MeSH headings : Animals; Chickens / microbiology; Female; Finches / microbiology; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / isolation & purification; Mycoplasma gallisepticum / pathogenicity; Phenotype; Phylogeny; Virginia; Virulence
TL;DR: Virulence in domestic poultry with two temporally distant, and yet geographically consistent, HFMG isolates which differ in virulence for house finches is assessed, indicating that a recent isolate of HFMG is greatly attenuated in the chicken host relative to the index isolate. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Core Genome Multilocus Sequence Typing: a Standardized Approach for Molecular Typing of Mycoplasma gallisepticum

JOURNAL OF CLINICAL MICROBIOLOGY, 56(1).

By: M. Ghanem *, L. Wang *, Y. Zhang *, S. Edwards *, A. Lu*, D. Ley n, M. El-Gazzar *

author keywords: strain typing; cgMLST; genomes; Mycoplasma gallisepticum; whole-genome sequence
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; DNA, Bacterial / genetics; Disease Outbreaks; Finches / microbiology; Genes, Bacterial / genetics; Genome, Bacterial / genetics; Molecular Epidemiology / methods; Multilocus Sequence Typing / veterinary; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / classification; Mycoplasma gallisepticum / genetics; Phylogeny; Poultry / microbiology
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2017 journal article

House Finch (Haemorhous mexicanus)-Associated Mycoplasma gallisepticum Identified in Lesser Goldfinch (Spinus psaltria) and Western Scrub Jay (Aphelocoma californica) using Strain-Specific Quantitative PCR

JOURNAL OF WILDLIFE DISEASES, 54(1), 180–185.

By: C. Allen*, A. Mara *, E. Tulman *, D. Ley n & S. Geary *

author keywords: Corvidae; House Finch; Lesser Goldfinch; Mycoplasma gallisepticum; mycoplasmal conjunctivitis; qPCR; RAPD; Western Scrub Jay
MeSH headings : Animals; Bird Diseases / microbiology; DNA, Bacterial / genetics; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / isolation & purification; Passeriformes; Polymerase Chain Reaction / methods
TL;DR: Two new potential host species of HFMG strain are reported, the Lesser Goldfinch (Spinus psaltria) and the Western (California) Scrub Jay (Aphelocoma californica), belonging to the Corvidae family, and it is suggested that the host range of HF MG was not limited to members of the family Fringillidae. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Response of House Finches Recovered from Mycoplasma gallisepticum to Reinfection with a Heterologous Strain

AVIAN DISEASES, 61(4), 437–441.

By: A. Dhondt *, K. Dhondt*, W. Hochachka *, D. Ley n & D. Hawley *

author keywords: virulence; emerging disease
MeSH headings : Animals; Bird Diseases / microbiology; Finches; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / physiology; New York; Recurrence
TL;DR: The data suggest that the observed increase in Mycoplasma gallisepticum virulence, once the disease has become endemic in free-ranging house finches is—in part—driven by increased resistance of recovered birds to strains of equal or lower virulence. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 journal article

House Finch (Haemorhous mexicanus) Conjunctivitis, and Mycoplasma spp. Isolated from North American Wild Birds, 1994-2015

JOURNAL OF WILDLIFE DISEASES, 52(3), 669–673.

By: D. Ley n, D. Hawley *, S. Geary * & A. Dhondt *

author keywords: Conjunctivitis; Haemorhous mexicanus; House Finch; Mycoplasma gallisepticum; Mycoplasma gypis; Mycoplasma sturni; mycoplasmosis; wild birds
MeSH headings : Animals; Animals, Wild; Bird Diseases / microbiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; Finches; Mycoplasma / classification; Mycoplasma / isolation & purification; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; North America / epidemiology; Retrospective Studies
TL;DR: Accumulating evidence shows that a diverse range of wild bird species may carry or have been exposed to M. gallisepticum in the US, as in Europe and Asia, and may actually be the exception that has allowed us to identify the broader epidemiologic picture. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Diverse Wild Bird Host Range of Mycoplasma gallisepticum in Eastern North America

PLOS ONE, 9(7).

By: A. Dhondt *, J. DeCoste*, D. Ley n & W. Hochachka *

MeSH headings : Animals; Finches / parasitology; Host Specificity; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / pathogenicity; North America
TL;DR: Combining the present results with those of previous studies shows that a diverse range of wild bird species may carry or have been exposed to M. gallisepticum in the USA as well as in Europe and Asia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Chronic Mycoplasma conjunctivitis in house finches: Host antibody response and M. gallisepticum VlhA expression

VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY, 154(3-4), 129–137.

By: J. Grodio*, D. Ley n, K. Schat * & D. Hawley *

author keywords: Mycoplasma gallisepticum; Haemorhous mexicanus; Carpodacus mexicanus; House finch; VlhA; Antibody response; IgA
MeSH headings : Animals; Antibodies, Bacterial / physiology; Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Bird Diseases / immunology; Bird Diseases / microbiology; Chronic Disease; Female; Finches; Gene Expression Regulation, Bacterial; Male; Mycoplasma Infections / immunology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum
TL;DR: It is shown that VlHA expression differs among MG isolates in this study, and that in vivo VlhA changes occur in house finches infected with MG, suggesting that chronic MG disease has a strong pathogen-mediated component. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Multiple host transfers, but only one successful lineage in a continent-spanning emergent pathogen

By: W. Hochachka *, A. Dhondt *, A. Dobson *, D. Hawley *, D. Ley n & I. Lovette *

author keywords: Mycoplasma gallisepticum; phylogeny; house finch; Haemorhous mexicanus; Carpodacus; host transfer
MeSH headings : Animals; Bayes Theorem; Biological Evolution; Bird Diseases / microbiology; Bird Diseases / transmission; Communicable Diseases, Emerging / veterinary; DNA, Bacterial / chemistry; DNA, Bacterial / isolation & purification; Finches / microbiology; Haplotypes; Host-Pathogen Interactions; Mycoplasma Infections / transmission; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / classification; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / isolation & purification; Phylogeny; Poultry / microbiology; Poultry Diseases / microbiology; Poultry Diseases / transmission
TL;DR: Whether host transfer has been a repeated event between the original poultry hosts and house finches, whether only a single host transfer was ultimately responsible for the emergence of M. gallisepticum, and whether the spread of the pathogen from east to west across North America has resulted in spatial structuring in the pathogenic. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Parallel Patterns of Increased Virulence in a Recently Emerged Wildlife Pathogen

PLOS BIOLOGY, 11(5).

By: D. Hawley *, E. Osnas *, A. Dobson *, W. Hochachka *, D. Ley n & A. Dhondt *

MeSH headings : Animals; Biological Evolution; Finches / genetics; Finches / microbiology; Genetic Variation; Host-Pathogen Interactions / genetics; Mycoplasma gallisepticum / pathogenicity; Virulence
TL;DR: A bacterial pathogen of wild songbirds evolved higher virulence following its emergence in two separate regions of the host range after it emerged from a single source in the wild. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Conjunctivitis, rhinitis, and sinusitis in cliff swallows (Petrochelidon pyrrhonota) found in association with Mycoplasma sturni infection and cryptosporidiosis

AVIAN PATHOLOGY, 41(4), 395–401.

By: D. Ley n, A. Moresco*  & S. Frasca*

Contributors: D. Ley n, A. Moresco*  & S. Frasca Jr.

MeSH headings : Animals; Bird Diseases / drug therapy; Bird Diseases / microbiology; Bird Diseases / parasitology; Bird Diseases / pathology; Coinfection; Conjunctiva / pathology; Conjunctivitis / complications; Conjunctivitis / microbiology; Conjunctivitis / parasitology; Conjunctivitis / veterinary; Cryptosporidiosis / complications; Cryptosporidiosis / pathology; Cryptosporidiosis / veterinary; Cryptosporidium / isolation & purification; DNA, Bacterial / chemistry; DNA, Bacterial / genetics; DNA, Ribosomal / chemistry; DNA, Ribosomal / genetics; Fatal Outcome; Mycoplasma / genetics; Mycoplasma / isolation & purification; Mycoplasma Infections / complications; Mycoplasma Infections / microbiology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Nasal Septum / pathology; RNA, Ribosomal, 16S / genetics; Rhinitis / complications; Rhinitis / microbiology; Rhinitis / parasitology; Rhinitis / veterinary; Sequence Analysis, DNA; Sinusitis / complications; Sinusitis / microbiology; Sinusitis / parasitology; Sinusitis / veterinary; Swallows; Turbinates / pathology
TL;DR: Identification of concurrent M. sturni and Cryptosporidium spp. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: August 6, 2018

2012 journal article

Extensive variation in surface lipoprotein gene content and genomic changes associated with virulence during evolution of a novel North American house finch epizootic strain of Mycoplasma gallisepticum

MICROBIOLOGY-SGM, 158, 2073–2088.

By: E. Tulman *, X. Liao*, S. Szczepanek *, D. Ley n, G. Kutish* & S. Geary *

MeSH headings : Animals; Bacterial Proteins / genetics; Bacterial Proteins / metabolism; Base Sequence; Bird Diseases / microbiology; Evolution, Molecular; Genetic Variation; Genome, Bacterial; Genomics; Lipoproteins / genetics; Lipoproteins / metabolism; Molecular Sequence Data; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / classification; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / isolation & purification; Mycoplasma gallisepticum / pathogenicity; Passeriformes / microbiology; Phylogeny; Virulence; Zoonoses / microbiology
TL;DR: Comparison of HFMG genomes identifies candidate virulence genes and reveals the importance of phase-variable lipoproteins during the evolution of M. gallisepticum during its emergence and dissemination in a novel host in nature, likely mediating an important role at the interface between pathogen virulence and host immunity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Mycoplasma Corogypsi-Associated Polyarthritis and Tenosynovitis in Black Vultures (Coragyps atratus)

VETERINARY PATHOLOGY, 50(2), 291–298.

By: A. Van Wettere n, D. Ley n, D. Scott *, H. Buckanoff & L. Degernes n

author keywords: avian; arthritis; black vulture; Coragyps atratus; Mycoplasma corogypsi; polymerase chain reaction; bacterial isolation; tenosynovitis
MeSH headings : Animals; Arthritis / microbiology; Arthritis / pathology; Arthritis / veterinary; Base Sequence; Bird Diseases / microbiology; Bird Diseases / pathology; Birds; DNA, Ribosomal Spacer / genetics; Female; Male; Molecular Sequence Data; Mycoplasma / genetics; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Polymerase Chain Reaction / veterinary; Sequence Analysis, DNA / veterinary; Tenosynovitis / microbiology; Tenosynovitis / pathology; Tenosynovitis / veterinary; United States
TL;DR: Cases of arthritis and tenosynovitis in New World vultures should be investigated for presence of Mycoplasma spp, especially M. corogypsi. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Experimental infection of domestic canaries (Serinus canaria domestica) with Mycoplasma gallisepticum: a new model system for a wildlife disease

AVIAN PATHOLOGY, 40(3), 321–327.

By: D. Hawley *, J. Grodio*, S. Frasca*, L. Kirkpatrick* & D. Ley n

MeSH headings : Animals; Animals, Wild; Bird Diseases / microbiology; Bird Diseases / pathology; Canaries; Mycoplasma Infections / microbiology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum
TL;DR: The results indicate that domestic canaries may serve as a potentially useful model system for the experimental study of M. gallisepticum infection in songbirds, and support previous field and experimental studies that have documented universal susceptibility to the pathogen. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Pathogenicity and immunogenicity of three Mycoplasma gallisepticum isolates in house finches (Carpodacus mexicanus)

VETERINARY MICROBIOLOGY, 155(1), 53–61.

By: J. Grodio*, D. Hawley *, E. Osnas *, D. Ley n, K. Dhondt*, A. Dhondt *, K. Schat *

author keywords: Mycoplasma gallisepticum; House finch; Carpodacus mexicanus; Conjunctivitis; Antibody response
MeSH headings : Animals; Antibodies, Bacterial / analysis; Antibodies, Bacterial / blood; Bacterial Load; Bird Diseases / immunology; Bird Diseases / microbiology; Bird Diseases / pathology; Conjunctivitis, Bacterial / immunology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / pathology; Conjunctivitis, Bacterial / veterinary; Finches / microbiology; Genotype; Mycoplasma Infections / immunology; Mycoplasma Infections / microbiology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / immunology; Mycoplasma gallisepticum / pathogenicity; Time Factors
TL;DR: Evidence is provided that MG strains or strain variants circulating in house finch populations vary in their ability to cause disease, induce antibody responses, and persist in the host. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Common garden experiment reveals pathogen isolate but no host genetic diversity effect on the dynamics of an emerging wildlife disease

JOURNAL OF EVOLUTIONARY BIOLOGY, 23(8), 1680–1688.

By: D. Hawley *, K. Dhondt*, A. Dobson *, J. Grodio*, W. Hochachka *, D. Ley n, E. Osnas *, K. Schat*, A. Dhondt *

author keywords: Carpodacus mexicanus; common garden experiment; evolution of virulence; host genetic diversity; host-pathogen interaction; Mycoplasma gallisepticum
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Finches / genetics; Finches / immunology; Genetic Variation; Host-Pathogen Interactions / genetics; Immunocompetence / immunology; Microsatellite Repeats / genetics; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / isolation & purification; Mycoplasma gallisepticum / pathogenicity; Prevalence; Time Factors
TL;DR: The results indicate that contemporary differences in host genetic diversity likely do not explain the lower conjunctivitis prevalence in native house finches, but isolate‐level differences in virulence may play an important role. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Mycoplasma iowae associated with chondrodystrophy in commercial turkeys

AVIAN PATHOLOGY, 39(2), 87–93.

By: D. Ley n, R. Marusak n, E. Vivas n, H. Barnes n & O. Fletcher n

MeSH headings : Animals; Antibodies, Bacterial / immunology; Cartilage / pathology; Chondrocytes / pathology; DNA, Bacterial / genetics; Diagnosis, Differential; Female; Hindlimb / microbiology; Hindlimb / pathology; Mycoplasma Infections / microbiology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Mycoplasma iowae / genetics; Mycoplasma iowae / immunology; Mycoplasma iowae / isolation & purification; Poultry Diseases / microbiology; Poultry Diseases / pathology; Spine / microbiology; Spine / pathology; Turkeys
TL;DR: This is the first detailed description of the gross and microscopic lesions of vertebral chondrodystrophy associated with M. iowae, which should now be considered in the differential diagnosis of turkeys with these lesions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Mycoplasma sturni from a California House Finch with Conjunctivitis Did Not Cause Disease in Experimentally Infected House Finches

JOURNAL OF WILDLIFE DISEASES, 46(3), 994–999.

By: D. Ley n, N. Anderson, K. Dhondt* & A. Dhondt *

author keywords: Carpodacus mexicanus; conjunctivitis; House Finch; Mycoplasma gallisepticum; Mycoplastna sturni
MeSH headings : Animals; Bird Diseases / microbiology; Bird Diseases / transmission; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / transmission; Conjunctivitis, Bacterial / veterinary; Female; Finches / microbiology; Male; Mycoplasma / pathogenicity; Mycoplasma Infections / microbiology; Mycoplasma Infections / transmission; Mycoplasma Infections / veterinary; Species Specificity; United States
TL;DR: Experimental infection of House Finches with the M. sturni isolate failed to reproduce the disease and M. gallisepticum remains the primary known cause of conjunctivitis in Houses Finches. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Effects of route of inoculation on Mycoplasma gallisepticum infection in captive house finches

AVIAN PATHOLOGY, 36(6), 475–479.

By: K. Dhondt*, A. Dhondt * & D. Ley n

MeSH headings : Animals; Behavior, Animal; Bird Diseases / microbiology; Cloaca / microbiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; DNA, Bacterial / isolation & purification; Feces / microbiology; Finches / microbiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / transmission; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / genetics; Mycoplasma gallisepticum / isolation & purification; Mycoplasma gallisepticum / physiology; Polymerase Chain Reaction / veterinary
TL;DR: It is shown that oral exposure to M. gallisepticum can initiate infection, disease, and a serological response, which suggests that food or water contaminated with secretions or excretions may be a route of transmission between house finches. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Experimental infection of chickens and turkeys with Mycoplasma gallisepticum reference strain S6 and North Carolina field isolate RAPD type B

AVIAN DISEASES, 51(1), 106–111.

By: B. Sanei*, H. Barnes*, J. Vaillancourt* & D. Ley*

author keywords: Mycoplasma gallisepticum; MG; North Carolina; outbreak; epidemic; RAPD; S6; chickens; turkeys
TL;DR: During an epidemic of mycoplasmosis in chicken and turkey flocks in North Carolina between 1999 and 2001, isolates of Mycoplasma gallisepticum from affected flocks were characterized by random amplification of polymorphic DNA (RAPD), and eight distinct RAPD types were identified. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Pneumonia of Turkey Breeder Hens Associated with Mycoplasma synoviae

AVIAN DISEASES, 51(3), 791–796.

By: C. Osorio  n, O. Fletcher*, T. Abdul-Aziz*, E. Gonder*, B. Tilley* & D. Ley*

author keywords: fibrinous pneumonia; Mycoplasma synoviae; turkey breeder hens; respiratory disease
TL;DR: Results of lung histopathology and PCR tests were consistent with a diagnosis of pneumonia caused by MS, and MS was identified by both mycoplasma culture and polymerase chain reaction (PCR) procedures in samples from choanal clefts and tracheas. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Further western spread of Mycoplasma gallisepticum infection of house finches

JOURNAL OF WILDLIFE DISEASES, 42(2), 429–431.

By: D. Ley n, D. Sheaffer* & A. Dhondt *

author keywords: Carpodacus mexicanus; conjunctivitis; house finch; Mycoplasma gallisepticum
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / transmission; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / transmission; Conjunctivitis, Bacterial / veterinary; Female; Finches / microbiology; Male; Montana / epidemiology; Mycoplasma Infections / epidemiology; Mycoplasma Infections / transmission; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / isolation & purification; Oregon / epidemiology; Polymerase Chain Reaction / methods; Polymerase Chain Reaction / veterinary; Seasons
TL;DR: Further western expansion of M. gallisepticum conjunctivitis in the native range of house finches is reported based on positive polymerase chain reaction results with samples from birds captured in 2004 and 2005 near Portland, Oregon. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Genotypic analyses of Mycoplasma gallisepticum isolates from songbirds by random amplification of polymorphic DNA and amplified-fragment length polymorphism

JOURNAL OF WILDLIFE DISEASES, 42(2), 421–428.

By: J. Cherry*, D. Ley n & S. Altizer *

author keywords: AFLP; emerging disease; genotype; house finch; Mycoplasma gallisepticum; Mycoplasmal conjunctivitis; RAPD
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; DNA, Bacterial / analysis; Evolution, Molecular; Finches / microbiology; Genotype; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / classification; Mycoplasma gallisepticum / genetics; Random Amplified Polymorphic DNA Technique / methods; Random Amplified Polymorphic DNA Technique / veterinary; Songbirds / microbiology
TL;DR: RAPD and AFLP results confirmed previous observations that during the initial stages of the MG epidemic in songbirds, isolates from different geographic locations and songbird species had genotypes that appeared to be highly similar, further supporting a single point source of origin. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Differentiation of Mycoplasma gallisepticum strains using amplified fragment length polymorphism and other DNA-based typing methods

AVIAN DISEASES, 49(1), 43–49.

By: Y. Hong *, M. Garcia *, S. Levisohn, P. Savelkoul *, V. Leiting*, I. Lysnyansky, D. Ley n, S. Kleven*

author keywords: Mycoplasma gallisepticum; amplified fragment length polymorphism; random amplified polymorphic DNA; sequence analysis; molecular typing; strain identification
MeSH headings : Bacterial Proteins / genetics; Bacterial Typing Techniques / methods; Base Sequence; DNA Primers; Genetic Variation; Molecular Sequence Data; Mycoplasma gallisepticum / genetics; Nucleic Acid Amplification Techniques; Polymorphism, Restriction Fragment Length; Random Amplified Polymorphic DNA Technique; Reproducibility of Results; Sequence Analysis, DNA; Species Specificity
TL;DR: Amplified fragment length polymorphism (AFLP) was used to type 34 strains of Mycoplasma gallisepticum including vaccine strains ts-11, 6/85, and F. Rossi, able to identify and differentiate both MG field strains from recent outbreaks and those that were epidemiologically related. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Dynamics of a novel pathogen in an avian host: Mycoplasmal conjunctivitis in house finches

ACTA TROPICA, 94(1), 77–93.

By: A. Dhondt *, S. Altizer *, E. Cooch*, A. Davis *, A. Dobson *, M. Driscoll*, B. Hartup *, D. Hawley * ...

author keywords: capture-mark-recapture; Carpodacus mexicanus; disease ecology; multi-disciplinary research; Mycoplasma gallisepticum; review
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; Disease Outbreaks / veterinary; Finches; Models, Biological; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / growth & development; Prevalence; Seasons; United States / epidemiology
TL;DR: A general compartmentalized epidemiological model of the dynamics of the house finch-MG system is constructed and pertinent questions relevant to this and other wildlife disease studies that require further investigation are addressed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Re-exposure of captive house finches that recovered from Mycoplasma gallisepticum infection

JOURNAL OF WILDLIFE DISEASES, 41(2), 326–333.

By: K. Sydenstricker*, A. Dhondt *, D. Ley n & G. Kollias*

author keywords: Carpodacus mexicanus; conjunctivitis; Eastern house finch; Mycoplasma gallisepticum; avian disease
MeSH headings : Agglutination Tests / veterinary; Analysis of Variance; Animals; Bird Diseases / epidemiology; Bird Diseases / immunology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / immunology; Conjunctivitis, Bacterial / veterinary; Disease Susceptibility / veterinary; Female; Finches; Male; Mycoplasma Infections / immunology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / immunology; Polymerase Chain Reaction / veterinary; Random Allocation; Time Factors
TL;DR: The results suggest that the birds were able to mount a rapid and strong immune response following re-exposure to MG and develop disease, suggesting that reinfection or perhaps even recurrence of infection and disease could occur in the free-ranging population. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Experimental infection of house finches with Mycoplasma gallisepticum

JOURNAL OF WILDLIFE DISEASES, 40(1), 79–86.

By: G. Kollias*, K. Sydenstricker*, H. Kollias*, D. Ley n, P. Hosseini*, V. Connolly*, A. Dhondt *

author keywords: Carpodacus mexicanus; conjunctivitis; eastern house finch; Mycoplasma gallisepticum; respiratory infection
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / immunology; Bird Diseases / pathology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / immunology; Conjunctivitis, Bacterial / pathology; Conjunctivitis, Bacterial / veterinary; Disease Susceptibility / veterinary; Female; Male; Mycoplasma Infections / epidemiology; Mycoplasma Infections / immunology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / pathogenicity; Population Density; Random Allocation; Songbirds; Time Factors
TL;DR: It is hypothesize that the high survival rate and recovery of these finches after infection was associated with the use of controlled environmental conditions, acclimatization, a high plane of nutrition, and low stocking (housing) density, all of which are factors documented to be important in the outcome of MG infections in domestic poultry and other species. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Health survey of house finches (Carpodacus mexicanus) from Wisconsin

AVIAN DISEASES, 48(1), 84–90.

By: B. Hartup *, B. Stott-Messick, M. Guzy* & D. Ley n

author keywords: house finch; Carpodacus mexicanus; parasites; health survey; Proctophyllodes vegetans; Mycoplasma gallisepticum
MeSH headings : Animals; Data Collection; Female; Health; Male; Mycoplasma gallisepticum / isolation & purification; Seasons; Songbirds / microbiology; Songbirds / parasitology; Songbirds / physiology; Wisconsin
TL;DR: A logistic regression analysis of the data suggests that greater fat scores, tarsal length, and being male are potential risk factors for mite infestation in house finches. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Molecular characterization of Mycoplasma gallisepticum isolates from Turkeys

AVIAN DISEASES, 48(3), 562–569.

By: S. Kleven*, R. Fulton*, M. Garcia *, V. Ikuta, V. Leiting*, T. Liu*, D. Ley n, K. Opengart, G. Rowland*, E. Wallner-Pendleton*

author keywords: Mycoplasma gallisepticum; vaccine; turkey; serology; pathogenesis
MeSH headings : Adhesins, Bacterial / genetics; Animals; Antibodies, Bacterial / blood; Base Sequence; DNA Primers; Molecular Sequence Data; Mycoplasma Infections / immunology; Mycoplasma Infections / veterinary; Mycoplasma gallisepticum / genetics; Poultry Diseases / immunology; Poultry Diseases / microbiology; Random Amplified Polymorphic DNA Technique; Sequence Analysis, DNA; Trachea / pathology; Turkeys / microbiology; United States
TL;DR: Although five isolates from several turkey flocks at different locations in the United States that were clinically affected with respiratory disease had patterns similar to the 6/85 vaccine strain, it was not possible to prove that they originated from the vaccine strain—it is possible that they could be naturally occurring field isolates. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Enhancement of enteropathogenic Escherichia coli pathogenicity in young turkeys by concurrent turkey coronavirus infection

AVIAN DISEASES, 47(2), 396–405.

By: S. Pakpinyo n, D. Ley*, H. Barnes*, J. Vaillancourt* & J. Guy* 

author keywords: turkey coronavirus; poult enteritis-mortality syndrome; Escherichia coli
TL;DR: It is indicated that TCV infection predisposes young turkeys to secondary EPEC infection and potentiates the expression of EPEC pathogenicity in youngTurkeys. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2003 journal article

Molecular variability of house finch Mycoplasma gallisepticum isolates as revealed by sequencing and restriction fragment length polymorphism analysis of the pvpA gene

AVIAN DISEASES, 47(3), 640–648.

By: . Pillai, H. Mays*, D. Ley n, P. Luttrell*, V. Panangala*, K. Farmer*, . Roberts

author keywords: Mycoplasma gallisepticum; house finches; pvpA gene; PCR-RFLP; phylogenetic analysis
MeSH headings : Adhesins, Bacterial / chemistry; Adhesins, Bacterial / genetics; Amino Acid Sequence; Animals; Base Sequence; Chickens; DNA, Bacterial / chemistry; Genetic Variation; Genotype; Mycoplasma gallisepticum / classification; Mycoplasma gallisepticum / genetics; Phylogeny; Polymerase Chain Reaction / veterinary; Polymorphism, Restriction Fragment Length; Random Amplified Polymorphic DNA Technique / veterinary; Sequence Alignment / veterinary; Sequence Analysis, DNA / veterinary; Songbirds / microbiology; Turkeys
TL;DR: It is suggested that house finch isolates are more polymorphic than previously recognized by RAPD studies, which may allow us to learn more about the molecular evolution and epidemiology of this emerging disease host–parasite relationship. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Prevalence of Enteropathogenic Escherichia coli in Naturally Occurring Cases of Poult Enteritis–Mortality Syndrome

Avian Diseases, 46(2), 360–369.

By: S. Pakpinyo n, D. Ley n, H. Barnes n, J. Vaillancourt n & J. Guy* 

author keywords: poult enteritis-mortality syndrome; enteropathogenic Escherichia coli
TL;DR: The prevalence of Enteropathogenic Escherichia coli in PEMS-affected turkeys was examined retrospectively with archived tissues and intestinal contents collected from 12 P EMS-affected turkey flocks in 1998 to provide additional evidence suggesting a possible role for EPEC in the pathogenesis of PEMS. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2001 journal article

Dynamics of conjunctivitis and Mycoplasma gallisepticum infections in house finches

AUK, 118(2), 327–333.

By: B. Hartup *, J. Bickal, A. Dhondt *, D. Ley n & G. Kollias*

TL;DR: Findings from two complementary studies designed to clarify annual and seasonal trends of MG infections in House Finches from the northeastern United States demonstrate dynamics consistent with annual variation in host density. (via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Identification of avian mycoplasma strains by random amplification of polymorphic DNA (RAPD)

Zootecnica International, (6), 46.

By: D. Ley

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Mycoplasmosis in captive crows and robins from Minnesota

JOURNAL OF WILDLIFE DISEASES, 37(3), 547–555.

By: J. Wellehan *, M. Calsamiglia*, D. Ley n, M. Zens*, A. Amonsin * & V. Kapur *

author keywords: American robin; American crow; Corvus brachyrhynchos; Mycoplasma sturni; mycoplasmosis; nested polymerase chain reaction; Turdus migratorius
MeSH headings : Animals; Base Sequence; Bird Diseases / epidemiology; Bird Diseases / microbiology; Colony Count, Microbial; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; DNA Fingerprinting / veterinary; DNA, Ribosomal / chemistry; Fluorescent Antibody Technique, Indirect; Minnesota / epidemiology; Mycoplasma / classification; Mycoplasma / genetics; Mycoplasma / isolation & purification; Mycoplasma Infections / epidemiology; Mycoplasma Infections / veterinary; Phylogeny; RNA, Ribosomal, 16S / genetics; Random Amplified Polymorphic DNA Technique / methods; Random Amplified Polymorphic DNA Technique / veterinary; Sensitivity and Specificity; Songbirds
TL;DR: It is suggested that M. sturni can successfully infect American crows and American robins with or without the presence of clinical disease and that substantial genetic heterogeneity exists among natural isolates of this bacterial pathogen. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Mycoplasmosis in evening and pine grosbeaks with conjunctivitis in Quebec

JOURNAL OF WILDLIFE DISEASES, 37(4), 826–830.

By: I. Mikaelian *, D. Ley n, R. Claveau, M. Lemieux* & J. Berube*

author keywords: case report; Coccothraustes vespertinus; conjunctivitis; evening grosbeak; mycoplasmosis; Mycoplasma gallisepticum; pine grosbeak; Pinicola enucleator
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / veterinary; DNA, Bacterial / analysis; Disease Outbreaks / veterinary; Female; Fluorescent Antibody Technique, Direct / veterinary; Male; Mycoplasma / classification; Mycoplasma / genetics; Mycoplasma Infections / epidemiology; Mycoplasma Infections / veterinary; Polymerase Chain Reaction / veterinary; Quebec / epidemiology; Random Amplified Polymorphic DNA Technique / veterinary; Songbirds
TL;DR: Observations suggest that the same strain of M. gallisepticum is the likely etiology for the observed disease in evening and pine grosbeaks in Canada and represent an extension of the host-species range for the ongoing epidemic of the disease in eastern North America. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Mycoplasmal conjunctivitis in songbirds from New York

JOURNAL OF WILDLIFE DISEASES, 36(2), 257–264.

By: B. Hartup *, G. Kollias* & D. Ley n

author keywords: Carpodacus mexicanus; Carpodacus purpureus; conjunctivitis; host range; house finch; Mycoplasma gallisepticum; mycoplasmosis; purple finch
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; DNA Fingerprinting / veterinary; DNA, Bacterial / analysis; DNA, Bacterial / chemistry; Female; Male; Mycoplasma / classification; Mycoplasma / genetics; Mycoplasma / isolation & purification; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; New York / epidemiology; Polymerase Chain Reaction / veterinary; Prevalence; Random Amplified Polymorphic DNA Technique / veterinary; Seasons; Songbirds
TL;DR: The prevalence of conjunctivitis and MG infections in house finches and other songbirds common to bird feeders in Tompkins County (New York, USA) declined between February/ March 1998 and February/March 1999, but only the former was significant (P < 0.05). (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Mycoplasmosis: somethings old and somethings new

Proceedings of the ... Western Poultry Disease Conference, 49(2000), 42–47.

By: D. Ley

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

Mycoplasma sturni from blue jays and northern mockingbirds with conjunctivitis in Florida

JOURNAL OF WILDLIFE DISEASES, 34(2), 403–406.

By: D. Ley n, S. Geary *, J. Berkhoff n, J. McLaren n & S. Levisohn n

author keywords: blue jay; case reports; conjunctivitis; Cyanocitta cristata; Mimus polyglottos; Mycoplasma sturni; northern mockingbird
MeSH headings : Animals; Bird Diseases / epidemiology; Bird Diseases / microbiology; Birds; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; Disease Outbreaks / veterinary; Florida / epidemiology; Fluorescent Antibody Technique, Indirect / veterinary; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary
TL;DR: Northern mockingbirds and blue jays in a Florida wildlife care facility developed clinical signs and gross lesions suggestive of the ongoing outbreak of Mycoplasma gallisepticum conjunctivitis, which should be considered in the differential diagnosis of songbirds with conjunctvitis. (via Semantic Scholar)
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Evaluation of treatment of conjunctivitis associated with Mycoplasma gallisepticum in house finches (Carpodacus mexicanus)

Journal of Avian Medicine and Surgery, 11(1), 20–24.

By: D. Ley, M. Stoskopf, E. Miller, S. Welte, J. Berkhoff, L. Degernes, W. Fleming

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Molecular epidemiologic investigations of Mycoplasma gallisepticum conjunctivitis in songbirds by random amplified polymorphic DNA analyses

EMERGING INFECTIOUS DISEASES, 3(3), 375–380.

By: D. Ley n, J. Berkhoff n & S. Levisohn

MeSH headings : Animals; Base Sequence; Bird Diseases / epidemiology; Bird Diseases / microbiology; Birds; Conjunctivitis, Bacterial / epidemiology; Conjunctivitis, Bacterial / microbiology; Conjunctivitis, Bacterial / veterinary; DNA Primers / genetics; DNA, Bacterial / genetics; DNA, Bacterial / isolation & purification; Disease Outbreaks / veterinary; Mycoplasma / genetics; Mycoplasma / isolation & purification; Mycoplasma Infections / epidemiology; Mycoplasma Infections / microbiology; Mycoplasma Infections / veterinary; Random Amplified Polymorphic DNA Technique; United States / epidemiology
TL;DR: The results indicate that the outbreak of Mycoplasma gallisepticum in songbirds is caused by the same strain, which suggests a single source; the outbreak is not cause by the vaccine or reference strains analyzed; and MG infection has not been shared between songbirds and commercial poultry. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Mycoplasma synoviae has two distinct phase variable major membrane antigens, one of which is a putative hemagglutinin

Infection and Immunity, 65(7), 2542–2547.

By: A. Noormohammadi, P. Markham, K. Whithear, I. Walker, V. Gurevich, D. Ley, G. Browning

Source: NC State University Libraries
Added: August 6, 2018

1997 journal article

Mycoplasmas in wild turkeys living in association with domestic fowl

JOURNAL OF WILDLIFE DISEASES, 33(3), 526–535.

By: R. Hoffman*, M. Luttrell*, W. Davidson* & D. Ley n

author keywords: domestic fowl; isolation; Merriam's wild turkey; Meleagris gallopavo merriami; Mycoplasma spp.; serologic survey
MeSH headings : Agglutination Tests / veterinary; Animals; Animals, Domestic; Animals, Wild; Antibodies, Bacterial / blood; Bird Diseases / epidemiology; Chickens; Colorado / epidemiology; Enzyme-Linked Immunosorbent Assay / veterinary; Female; Hemagglutination Inhibition Tests / veterinary; Immunoblotting; Male; Mycoplasma / immunology; Mycoplasma Infections / epidemiology; Mycoplasma Infections / veterinary; Prevalence; Seroepidemiologic Studies; Turkeys
TL;DR: The results of this study were inconclusive regarding the status of pathogenic mycoplasmas within this wild turkey population. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Transmissibility of live Mycoplasma gallisepticum vaccine strains ts-11 and 6/85 from vaccinated layer pullets to sentinel poultry

AVIAN DISEASES, 41(1), 187–194.

By: D. Ley*, J. McLaren*, A. Miles, H. Barnes*, S. Miller & G. Franz

author keywords: Mycoplasma gallisepticum; vaccine; chicken; turkey; random amplified polymorphic DNA
TL;DR: Clinical signs, morbidity, or mortality suggestive of pathogenic MG infection were not observed in any bird during either trial, and no gross lesions were observed at necropsy. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1996 journal article

Mycoplasma gallisepticum isolated from house finches (Carpodacus mexicanus) with conjunctivitis

AVIAN DISEASES, 40(2), 480–483.

By: D. Ley n, J. Berkhoff & J. McLaren

author keywords: Mycoplasma gallisepticum; MG; house finch; Carpodacus mexicanus; eye lesions; conjunctivitis
TL;DR: It is suggested that Mycoplasma gallisepticum is the likely etiology for this epornitic of conjunctivitis in house finches. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1993 journal article

CLINICAL MYCOPLASMA-GALLISEPTICUM INFECTION IN MULTIPLIER BREEDER AND MEAT TURKEYS CAUSED BY F-STRAIN - IDENTIFICATION BY SODIUM DODECYL-SULFATE POLYACRYLAMIDE-GEL ELECTROPHORESIS, RESTRICTION-ENDONUCLEASE ANALYSIS, AND THE POLYMERASE CHAIN-REACTION

AVIAN DISEASES, 37(3), 854–862.

By: D. Ley n, A. Avakian & J. Berkhoff

author keywords: MYCOPLASMA-GALLISEPTICUM; F-STRAIN; TURKEY; SODIUM DODECYL SULFATE POLYACRYL-AMIDE GEL ELECTROPHORESIS; RESTRICTION ENDONUCLEASE; POLYMERASE CHAIN REACTION
TL;DR: These studies demonstrated: 1) the utility of newer technologies for disease outbreak investigations; and 2) the potential of MG F strain to cause disease in breeder and meat turkeys under field conditions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1993 journal article

Performance characteristics of diagnostic tests for avian chlamydiosis

Journal of the Association of Avian Veterinarians, 7(4), 203.

By: D. Ley*, K. Flammer, P. Cowen & D. Whitt

Source: NC State University Libraries
Added: August 6, 2018

1992 journal article

AN OUTBREAK OF MYCOPLASMA-SYNOVIAE INFECTION IN NORTH-CAROLINA TURKEYS - COMPARISON OF ISOLATES BY SODIUM DODECYL-SULFATE POLYACRYLAMIDE-GEL ELECTROPHORESIS AND RESTRICTION ENDONUCLEASE ANALYSIS

AVIAN DISEASES, 36(3), 672–678.

By: D. Ley n & A. Avakian

TL;DR: The results suggest that flocks infected with members of the cluster were epizootiologically associated, possibly by a common or point source of infection. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

Citation Index includes data from a number of different sources. If you have questions about the sources of data in the Citation Index or need a set of data which is free to re-distribute, please contact us.

Certain data included herein are derived from the Web of Science© and InCites© (2024) of Clarivate Analytics. All rights reserved. You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.