title: Effect of temperature and relative humidity on variola virus in crusts.
abstract: The viability of variola virus in crusts under different conditions of temperature and relative humidity was studied for 16 weeks. At the ambient temperature of 25.8-26.4 degrees C and 85-90% relative humidity, the virus survived only 8 weeks but at lower temperatures and relative humidities the survival time was considerably prolonged.
mesh_terms: D006801:Humans; D006813:Humidity; D012900:Smallpox Vaccine; D013696:Temperature; D013997:Time Factors; D014611:Vaccination; D012901:Variola virus / Q000502:physiology*
chemical_list: D012900:Smallpox Vaccine