Efficacy of Sanitizing Treatments for Feline Calicivirus as a Norovirus Surrogate Attached to Food and Food Contact Surfaces

  • Lee, Sung-Young ;
  • Kim, Kwang-Yup
  • Received : 2010.01.08
  • Accepted : 2010.06.20
  • Published : 2010.06.30


Norovirus (NV) is becoming a major cause of foodborne illness in many countries. At present, very little is known about the survival of NV in the environment or the disinfection procedures needed to remove NV from contaminated surfaces. Feline calicivirus (FCV, $1{\times}10^{6.75}\;TCID_{50}/mL$) was used as a surrogate model for NV to investigate the effectiveness of sanitizing treatments for the viruses attached to food and food contact surfaces. Ammonium chloride (2%), organic acids (3000 ppm), and ethanol (70%) were most effective, providing $4\;log_{10}$ (99.99%) reductions in FCV titers on food or food contact surfaces. The disinfection efficacies of most agents on ceramic and glass surfaces were greater than stainless steel. The results from this study can be applied in the food industry to reduce NV-associated foodborne illnesses.


norovirus;feline calicivirus;inactivation;$TCID_{50}$;disinfectants


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Supported by : Chungbuk National University