@article{kirchner_everhart_doring_smits_faircloth_duong_goulter_goodson_shelley_shumaker_et al._2022, title={Cross-Contamination to Surfaces in Consumer Kitchens with MS2 as a Tracer Organism in Ground Turkey Patties}, volume={85}, ISSN={["1944-9097"]}, DOI={10.4315/JFP-22-060}, abstractNote={It is estimated that one in five cases of foodborne illnesses is acquired in the home. However, how pathogens move around a kitchen environment when consumers are preparing food is not well characterized. The purpose of this study was to determine the prevalence and degree of cross-contamination across a variety of kitchen surfaces during a consumer meal preparation event. Consumers (n=371) prepared a meal consisting of turkey patties containing the bacteriophage MS2 as a tracer organism and a ready-to-eat lettuce salad. Half were shown a video on proper thermometer use before the trial. After meal preparation, environmental sampling and detection were performed to assess cross-contamination with MS2. For most surfaces, positivity did not exceed 20%, with the exception of spice containers, for which 48% of the samples showed evidence of MS2 cross-contamination. Spice containers also had the highest MS2 concentrations, at a mean exceeding 6 log 10 viral genome equivalent copies (GEC) per surface. The high level of MS2 on spice containers drove the significant differences between surfaces, suggesting the significance of spice containers as a vehicle for cross-contamination, despite the absence of previous reports to this effect. The thermometer safety intervention did not affect cross-contamination. The efficiency of MS2 transfer, when expressed as a percentage, was relatively low, ranging from an average of 0.002 to 0.07%. Quantitative risk assessment work using these data would aid in further understanding the significance of cross-contamination frequency and efficiency. Overall, these data will help create more targeted consumer messaging to better influence consumer cross-contamination behaviors.}, number={11}, journal={JOURNAL OF FOOD PROTECTION}, author={Kirchner, Margaret and Everhart, Savana and Doring, Lindsey and Smits, Caitlin and Faircloth, Jeremy and Duong, Minh and Goulter, Rebecca M. and Goodson, Lydia and Shelley, Lisa and Shumaker, Ellen Thomas and et al.}, year={2022}, month={Nov}, pages={1594–1603} } @article{escudero-abarca_goulter_bradshaw_faircloth_leslie_manuel_arbogast_jaykus_2022, title={Efficacy of an alcohol-based surface disinfectant formulation against human norovirus}, ISSN={["1365-2672"]}, DOI={10.1111/jam.15479}, abstractNote={Abstract}, journal={JOURNAL OF APPLIED MICROBIOLOGY}, author={Escudero-Abarca, Blanca I and Goulter, Rebecca M. and Bradshaw, Justin and Faircloth, Jeremy and Leslie, Rachel A. and Manuel, Clyde S. and Arbogast, James W. and Jaykus, Lee-Ann}, year={2022}, month={Feb} } @article{faircloth_goulter_manuel_arbogast_escudero-abarca_jaykus_2022, title={The Efficacy of Commercial Surface Sanitizers against Norovirus on Formica Surfaces with and without Inclusion of a Wiping Step}, ISSN={["1098-5336"]}, DOI={10.1128/aem.00807-22}, abstractNote={Human noroviruses (hNoVs) are the leading cause of acute gastroenteritis and food-borne disease worldwide. Noroviruses are difficult to inactivate, being recalcitrant to sanitizers and disinfectants commonly used by the retail food sector.}, journal={APPLIED AND ENVIRONMENTAL MICROBIOLOGY}, author={Faircloth, Jeremy and Goulter, Rebecca M. and Manuel, Clyde S. and Arbogast, James W. and Escudero-Abarca, Blanca and Jaykus, Lee-Ann}, year={2022}, month={Aug} } @article{faircloth_moore_stoufer_kim_jaykus_2021, title={Generation of Nucleic Acid Aptamer Candidates against a Novel Calicivirus Protein Target}, volume={13}, ISSN={["1999-4915"]}, DOI={10.3390/v13091716}, abstractNote={Human norovirus is the leading cause of foodborne illness globally. One of the challenges in detecting noroviruses is the identification of a completely broadly reactive ligand; however, all detection ligands generated to date target the viral capsid, the outermost of which is the most variable region of the genome. The VPg is a protein covalently linked to the viral genome that is necessary for replication but hitherto remains underexplored as a target for detection or therapeutics. The purpose of this work was to generate nucleic acid aptamers against human norovirus (Norwalk) and cultivable surrogate (Tulane) VPgs for future use in detection and therapeutics. Eight rounds of positive-SELEX and two rounds of counter-SELEX were performed. Five and eight unique aptamer sequences were identified for Norwalk and Tulane VPg, respectively, all of which were predicted to be stable (∆G < −5.0) and one of which occurred in both pools. All candidates displayed binding to both Tulane and Norwalk VPg (positive:negative > 5.0), and all but two of the candidates displayed very strong binding (positive:negative > 10.0), significantly higher than binding to the negative control protein (p < 0.05). Overall, this work reports a number of aptamer candidates found to be broadly reactive and specific for in vitro-expressed VPgs across genus that could be used for future application in detection or therapeutics. Future work characterizing binding of the aptamer candidates against native VPgs and in therapeutic applications is needed to further evaluate their application.}, number={9}, journal={VIRUSES-BASEL}, author={Faircloth, Jeremy and Moore, Matthew D. and Stoufer, Sloane and Kim, Minji and Jaykus, Lee-Ann}, year={2021}, month={Sep} }