American Journal of Veterinary Research · 1990 · 61 citations · 2 references
Life SciencesBiologyMicrobiologyInfectious Disease EpidemiologyMolecular VirologyVirologyAnimal VirusesEnvironmental VirologyViral InfectionsViral PersistenceHumidity Effects On DiseaseHumidity Effects On TransmissionRelative Humidity EffectsViral SurvivalVirus Persistence In The EnvironmentVirus SurvivalVirus-host Interactions In The EnvironmentVirus-laden Aerosols
The survival of pseudorabies virus in an aerosol was studied under different environmental conditions of temperature and relative humidity. Pseudorabies virus decayed logarithmically with mean half-lives of 17.4 (85% relative humidity, 22 C), 18.8 (25% relative humidity, 22 C), 27.3 (85% relative humidity, 4 C), 36.1 (55% relative humidity, 22 C), and 43.6 (55% relative humidity, 4 C) minutes. Virus survival was significantly improved in environments at 55% relative humidity, compared with those at 85% relative humidity (P = 0.017). Rates of survival were improved in environment at 4 C in comparison with those at 22 C. Results suggest that, under the best conditions of this study, the infectivity of pseudorabies virus in an aerosol decreases by 50% in less than 1 hour.
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