Pettibone
Through the transfer of bodily fluids, from a bite or scratch, it could be airborne, or from inhalation.
Coffey
Orally, through bodily fluids, inhaling the disease...etc, etc. It depends on the infectious disease itself, though.
Lincolnville
Contact or shared air.
Saturday, February 5, 2011
How can a person obtain an infectious disease ?
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