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Appl Environ Microbiol. 1985 November; 50(5): 1181-1186

Method for detecting viruses in aerosols.

C Wallis, J L Melnick, V C Rao and T E Sox

ABSTRACT

A simple method with poliovirus as the model was developed for recovering human enteric viruses from aerosols. Filterite filters (pore size, 0.45 micron; Filterite Corp., Timonium, Md.) moistened with glycine buffer (pH 3.5) were used for adsorbing the aerosolized virus. No virus passed the filter, even with air flow rates of 100 liters/min. Virus recovery from the filter was achieved by rapid elution with 800 ml of glycine buffer, pH 10. The virus in the primary eluate was reconcentrated by adjusting the pH to 3.5, adding AlCl3 to 0.0005 M, collecting the virus on a 0.25-micron-pore Filerite disk (diameter, 25 mm) and and eluting with 6 ml of buffer, pH 10. With this method, virus could be detected regularly in aerosols produced by flushing when 3 X 10(8) PFU of poliovirus were present in the toilet bowl. Poliovirus-containing fecal material from two of four infants who had recently received oral polio vaccine also yielded virus in the aerosols when feces containing 2.4 X 10(7) to 4.5 X 10(7) PFU of virus had been added to the toilet bowl. Persons infected with a variety of natural enteric viruses are known to excrete this amount of virus in their daily stools.

Appl Environ Microbiol. 1985 November; 50(5): 1181-1186




This article has been cited by other articles:

  • Verreault, D., Moineau, S., Duchaine, C. (2008). Methods for Sampling of Airborne Viruses. Microbiol. Mol. Biol. Rev. 72: 413-444 [Abstract] [Full Text]  


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