Published in Vaccine Weekly, July 12th, 2000
In some reports, there were misconceptions about the components of the vaccine used to prevent smallpox, and about why any country might still be retaining stocks of smallpox vaccine. A recent WHO report sought to clarify these issues.
Smallpox vaccine is not made from smallpox virus, the agency reported. The vaccine, which was used for centuries to vaccinate against smallpox, was not made from smallpox, but from vaccinia virus. Vaccinia is a different virus from the virus...
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