PMID- 36519006 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221221 IS - 2573-2102 (Electronic) IS - 2573-2102 (Linking) VI - 6 IP - 4 DP - 2022 Oct TI - Evaluating dry vs. wet disinfection in boot baths on detection of porcine epidemic diarrhea virus and porcine reproductive and respiratory virus RNA. PG - txac150 LID - 10.1093/tas/txac150 [doi] LID - txac150 AB - Maintaining biosecurity between swine barns is challenging, and boot baths are an easily implementable option some utilize to limit pathogen spread. However, there are concerns regarding their efficacy, especially when comparing wet or dry disinfectants. The objective of this study was to evaluate the efficacy of boot baths in reducing the quantity of detectable porcine epidemic diarrhea virus (PEDV) and porcine reproductive and respiratory syndrome virus (PRRSV) genetic material using wet or dry disinfectants. Treatments included 1) control, 2) dry chlorine powder (Traffic C.O.P., PSP, LLC, Rainsville, AL), and 3) wet quaternary ammonium/glutaraldehyde liquid (1:256 Synergize, Neogen, Lexington, KY). Prior to disinfection, rubber boots were inoculated with 1 mL of a co-inoculants of PRRSV (1 x 10(5) TCID(50) per mL) and PEDV (1 x 10(5) TCID(50) per mL) and dried for 15 min. After the drying period, a researcher placed the boot on the right foot and stepped directly on a stainless steel coupon (control). Alternatively, the researcher stepped first into a boot bath containing either the wet or dry sanitizer, stood for 3 s, and then stepped onto a steel coupon. After one minute, an environmental swab was then collected and processed from each boot and steel coupon. The procedure was replicated 12 times per disinfectant treatment. Samples were analyzed using a duplex qPCR at the Kansas State Veterinary Diagnostic Laboratory. Cycle threshold values were analyzed using SAS GLIMMIX v 9.4 (SAS, Inc., Cary, NC). There was no evidence of a disinfectant x surface x virus interaction (P > 0.10). An interaction between disinfectant x surface impacted (P < 0.05) the quantity of detectable viral RNA. As expected, the quantity of the viruses on the coupon was greatest in the control, indicating that a contaminated boot has the ability to transfer viruses from a contaminated surface to a clean surface. Comparatively, the dry disinfectant treatment resulted in no detectable viral RNA on either the boot or subsequent coupon. The wet disinfectant treatment had statistically similar (P > 0.05) viral contamination to the control on the boot, but less viral contamination compared to the control on the metal coupon. In this experiment, a boot bath with dry powder was the most efficacious in reducing the detectable viral RNA on both boots and subsequent surfaces. CI - (c) The Author(s) 2022. Published by Oxford University Press on behalf of the American Society of Animal Science. FAU - Harrison, Olivia L AU - Harrison OL AD - Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS, USA. FAU - Houston, Grace E AU - Houston GE AD - Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA. FAU - Blomme, Allison K AU - Blomme AK AD - Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA. FAU - Otott, Haley K AU - Otott HK AD - Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA. FAU - Bai, Jianfa AU - Bai J AD - Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA. FAU - Poulsen Porter, Elizabeth G AU - Poulsen Porter EG AD - Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA. FAU - Woodworth, Jason C AU - Woodworth JC AUID- ORCID: 0000-0001-7268-4278 AD - Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS, USA. FAU - Paulk, Chad B AU - Paulk CB AD - Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA. FAU - Gebhardt, Jordan T AU - Gebhardt JT AUID- ORCID: 0000-0002-6144-6714 AD - Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA. FAU - Jones, Cassandra K AU - Jones CK AUID- ORCID: 0000-0002-0671-8879 AD - Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS, USA. LA - eng PT - Journal Article DEP - 20221112 PL - England TA - Transl Anim Sci JT - Translational animal science JID - 101738705 PMC - PMC9744243 OTO - NOTNLM OT - PEDV OT - PRRSV OT - boot bath OT - swine EDAT- 2022/12/16 06:00 MHDA- 2022/12/16 06:01 PMCR- 2022/11/12 CRDT- 2022/12/15 02:35 PHST- 2022/08/24 00:00 [received] PHST- 2022/11/08 00:00 [accepted] PHST- 2022/12/15 02:35 [entrez] PHST- 2022/12/16 06:00 [pubmed] PHST- 2022/12/16 06:01 [medline] PHST- 2022/11/12 00:00 [pmc-release] AID - txac150 [pii] AID - 10.1093/tas/txac150 [doi] PST - epublish SO - Transl Anim Sci. 2022 Nov 12;6(4):txac150. doi: 10.1093/tas/txac150. eCollection 2022 Oct.