International Scientific Forum on Home Hygiene

Home Hygiene & Health

The Leading Source of Scientific, Professional & Consumer Information
International Scientific Forum on Home Hygiene

Home Hygiene & Health

The Leading Source of Scientific, Professional & Consumer Information

Resistance of surface-dried virus to common disinfection procedures.

This study evaluated 0.1 N NaOH and 0.1% hypochlorite for their capacity to inactivate surface-dried lipid-enveloped (LE) HIV, bovine viral diarrhoea virus and pseudorabies virus and non-lipid-enveloped; canine parvovirus and hepatitis A virus in a background of either plasma or culture medium. In addition, 80% ethanol was tested on surface-dried LE viruses. Without treatment, surface-dried LE viruses remained infectious for at least one week and NLE viruses for more than one month. Inactivation decreased for viruses dried in plasma, than virus in culture medium. Inactivation by all disinfectants improved when preceded by rehydration, although the infectivity of CPV actually increased after rehydration. Journal of Hospital Infection 2007;66;332-8.