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Politics : Dutch Central Bank Sale Announcement Imminent? -- Ignore unavailable to you. Want to Upgrade?


To: sea_urchin who wrote (22664)3/15/2005 4:05:06 PM
From: Henry Niman  Read Replies (1) | Respond to of 81003
 
The virus evolves from existing viruses. They may pick up new sequences, but its primarily with their own species, so human viruses evolve from last years version. This evolution is quite gradual most of the time.