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Category: Environmental Microbiology
Airborne Viruses, Page 1 of 2
< Previous page | Next page > /docserver/preview/fulltext/10.1128/9781555818821/9781555818821.ch3.2.7-1.gif /docserver/preview/fulltext/10.1128/9781555818821/9781555818821.ch3.2.7-2.gifAbstract:
Particles containing infectious human or animal viruses can contaminate air indoors or outdoors. The survival of such airborne viruses is influence by a variety of physical and chemical factors, important among these being temperature and relative humidity. Air currents outdoors can carry surviving viruses over several kilometers and such windborne spread is believed have resulted in outbreaks of animal diseases. Movements of air indoors can also transport viruses within houses and buildings. Indoor air can be decontaminated by filtering out viruses or by inactivating them with chemicals or physical agents such as ultraviolet inrradiation. Recent years have seen a revival of interest in airborne viruses in delivering vaccines, biothreat agents, and to better understand and prevent the spread of emerging/reemerging infections such as influenza.
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Direct or indirect exposure of susceptible hosts to aerosolized viruses. doi:10.1128/9781555818821.ch3.2.7.f1
Direct or indirect exposure of susceptible hosts to aerosolized viruses. doi:10.1128/9781555818821.ch3.2.7.f1
Scanning electron micrograph of an aerosol particle attached to a strand of spider web. Bar = 0.5 µm. (Reproduced with permission from Dr. B. Kournikakis of the Defence Research Establishment, Suffield, Alberta, Canada.). doi:10.1128/9781555818821.ch3.2.7.f2
Scanning electron micrograph of an aerosol particle attached to a strand of spider web. Bar = 0.5 µm. (Reproduced with permission from Dr. B. Kournikakis of the Defence Research Establishment, Suffield, Alberta, Canada.). doi:10.1128/9781555818821.ch3.2.7.f2
Biological decay of NDV captured on a spider web and held under sunlight (a) and under cloudy conditions (b). Control samples were held in the dark. (Reproduced with permission from Dr. B. Kournikakis of the Defence Research Establishment, Suffield, Alberta, Canada.) Expon. = The rate of loss in the viability of the virus. doi:10.1128/9781555818821.ch3.2.7.f3
Biological decay of NDV captured on a spider web and held under sunlight (a) and under cloudy conditions (b). Control samples were held in the dark. (Reproduced with permission from Dr. B. Kournikakis of the Defence Research Establishment, Suffield, Alberta, Canada.) Expon. = The rate of loss in the viability of the virus. doi:10.1128/9781555818821.ch3.2.7.f3