Effects of Temperature and Relative Humidity on the Survival of Newcastle Disease Virus Aerosols in the Rotating Drum

摘要

The survival of aerosolized Newcastle Disease Virus (LaSota strain) was examined under 15 conditions of temperature and relative humidity (10, 15, 20, 25, and 30 C, each at low (20-30%), medium (50%) and high (80%) relative humidities (RH)) in the rotating drum system. Virus survival was best at 10 C and at low RH. Since transit times of NDV aerosols in the field will likely be much shorter than the biological half lives observed in the drum system, the results suggest that RH and temperature should not play a major role in virus inactivation during field experimentation. Keywords: Canada, Biological decay, Biological warfare stimulants. (kr/kt)