Thread: Swine Flu
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Old 06-12-2009, 09:54 PM   #45
SypeKifef

Join Date
Oct 2005
Posts
571
Senior Member
Default
Thing is, viruses are not swingers. They do not interbreed that easily.
Viruses don't breed at all. They are not considered to be life forms, sometimes described "at the edge of life."

They do frequently mutate, by two means: antigenic drift, and the more serious antigenic shift

How viruses work.
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