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Updated: Dec 24, 2025

Determining Viral Disinfection Efficacy of Hot Water Laundering
Published on: June 21, 2022
Inactivation of porcine epidemic diarrhea virus using heated water
Michele M Zentkovich1, Sarah W Nelson1, Jason W Stull1
1The Ohio State University, 1920 Coffey Road, Columbus, OH 43210, USA.
Abstract:
Porcine epidemic diarrhea virus (PEDV) is a very contagious swine pathogen that spreads easily via the fecal-oral route, notably from contaminated fomites. The present study investigated heated water as a method for rapid thermal inactivation of PEDV. Cell-culture adapted PEDV was treated with water at varying temperatures and viral titers were measured at multiple time points post-treatment. Viable PEDV was not recovered after a ten second or longer treatment with water heated to ≥76 °C; however, PEDV nucleic acid was detected in all samples regardless of treatment. Hot water decontamination could be considered in settings where chemical disinfection is impractical.
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