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by not washing your hands and being to touchy There are two vectors (means of spreading) viruses: air and surface. Airborne viruses usually are able to survive without a host for longer periods, and are passed by sneezing, coughing, and breathing. Surfaceborne viruses are passed by direct contact. These viruses must come into contact with the mucus membranes of a new host to survive for very long. While the lifespan of a hostless virus is usually short, there are some exceptions. For instance, HIV survives outside the host for only several seconds, however, most strains of hepatitis can survive on a surface without a host for two weeks.

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16y ago

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