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The smallpox vaccine helps the body develop immunity to smallpox. The vaccine is made from a virus called vaccinia which is a pox-type virus relate...
markdcatlin • 8,556 views
If it went extinct or has been eradicated then why did I just have to get a smallpox vaccine?
f16z28 • 6,203 views
Since when does a pilot step early?
If it went extinct or has been eradicated then why did I just have to get a smallpox vaccine?