Survival of Airborne Pasteurella tularensis at Different Atmospheric Temperatures

Author:

Ehrlich Richard1,Miller Sol1

Affiliation:

1. Life Sciences Research Division, IIT Research Institute, Chicago, Illinois 60616

Abstract

The aerosol survival, recovery, and death rate of Pasteurella tularensis SCHU S5 disseminated in particle sizes of 1 to 5 μm were significantly affected by air temperature. The highest aerosol recovery of viable P. tularensis was observed within -7 and 3 C; the recovery decreased significantly below and above this temperature range. The death rate of airborne P. tularensis was not significantly influenced by an increase in temperature from -40 to 24 C. However, a progressive increase in atmospheric temperature from 24 to 35 C resulted in increased death rates; thus, a linear relationship appeared to be present between the temperature and death rates. At 49 C, the recoveries of viable airborne P. tularensis were significantly lower and the death rates were higher than at the other temperatures.

Publisher

American Society for Microbiology

Subject

General Pharmacology, Toxicology and Pharmaceutics,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

Reference9 articles.

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2. Aerosol survival of Pasteurella tularensis disseminated from the wet and dry states;Cox C. S.;Appl. Microbiol.,1971

3. Aerosol survival of Pasteurella tularensis and the influence of relative humidity;Cox C. S.;Appl. Microbiol.,1972

4. Effect of relative humidity and temperature on airborne Venezuelan equine encephalitis virus;Ehrlich R..;Appl. Microbiol.,1971

5. Relationship between atmospheric temperature and survival of airborne bacteria;Ehrlich R.;Appl. Microbiol.,1970

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