If you have had avian flu, are you more resistant to swine flu? - avian flu more condition_symptoms
If someone has the ability to fight bird flu and that there will be no "cross protection" against the swine flu? When the body remembers how to fight, remember, not only for a while?
Monday, December 14, 2009
Avian Flu More Condition_symptoms If You Have Had Avian Flu, Are You More Resistant To Swine Flu?
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