Why older people are having relatively low attack rates from h1n1 swine flu. Legacies of immunity.
http://www.nytimes.com/2009/05/21/health/21swineflu.html?_r=1
John C Kim MD
Sent telepathically from imind.
Jkim@kiddoc.org
7733218183
http://www.nytimes.com/2009/05/21/health/21swineflu.html?_r=1
John C Kim MD
Sent telepathically from imind.
Jkim@kiddoc.org
7733218183
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