title: Survival of pseudorabies virus in aerosol.
abstract: 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.
authors.affiliation: Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames 50011.
authors.forename: M A
authors.initials: MA
authors.lastname: Schoenbaum
authors.forename: J J
authors.initials: JJ
authors.lastname: Zimmerman
authors.forename: G W
authors.initials: GW
authors.lastname: Beran
authors.forename: D P
authors.initials: DP
authors.lastname: Murphy
mesh_terms: D000336:Aerosols; D001412:Bacillus subtilis / Q000502:physiology; D006207:Half-Life; D011558:Herpesvirus 1, Suid / Q000502:physiology*; D006813:Humidity; D013696:Temperature; D010948:Viral Plaque Assay
chemical_list: D000336:Aerosols