Methods for sampling of airborne viruses.
To better understand the underlying mechanisms of aerovirology, accurate sampling of airborne viruses is fundamental. The sampling instruments commonly used in aerobiology have also been used to recover viruses suspended in the air. We reviewed over 100 papers to evaluate the methods currently used for viral aerosol sampling. Differentiating infections caused by direct contact from those caused by airborne dissemination can be a very demanding task given the wide variety of sources of viral aerosols. While epidemiological data can help to determine the source of the contamination, direct data obtained from air samples can provide very useful information for risk assessment purposes. Many types of samplers have been used over the years, including liquid impingers, solid impactors, filters, electrostatic precipitators, and many others. The efficiencies of these samplers depend on a variety of environmental and methodological factors that can affect the integrity of the virus structure. The aerodynamic size distribution of the aerosol also has a direct effect on sampler efficiency. Viral aerosols can be studied under controlled laboratory conditions, using biological or nonbiological tracers and surrogate viruses, which are also discussed in this review. Lastly, general recommendations are made regarding future studies on the sampling of airborne viruses.
Verreault
Daniel
D
Centre de Recherche, Hôpital Laval, Institut Universitaire de Cardiologie et de Pneumologie, 2725 Chemin Ste.-Foy, Quebec City, Quebec, Canada G1V 4G5.
Moineau
Sylvain
S
Duchaine
Caroline
C
D000336:Aerosols / Q000032:analysis*; D000391:Air Microbiology; D000393:Air Pollutants / Q000032:analysis / Q000302:isolation & purification; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design / Q000295:instrumentation / Q000379:methods; D006801:Humans; D014773:Virology / Q000295:instrumentation / Q000379:methods*; D014777:Virus Diseases / Q000635:transmission / Q000821:virology; D014780:Viruses / Q000302:isolation & purification*
D000336:Aerosols; D000393:Air Pollutants
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