Immunization

Did the end of smallpox vaccination cause the explosive spread of HIV?

Published in Immunotherapy Weekly, June 2nd, 2010

Vaccinia immunization, as given to prevent the spread of smallpox, produces a five-fold reduction in HIV replication in the laboratory. Researchers writing in the open access journal BMC Immunology suggest that the end of smallpox vaccination in the mid-20th century may have caused a loss of protection that contributed to the rapid contemporary spread of HIV.

Raymond Weinstein, a family doctor turned laboratory scientist at George Mason University, Manassas, Virginia, USA, worked with a team of researchers from George Washington University and UCLA. The researchers looked at the ability of white blood cells taken from people recently immunised with vaccinia to support...

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Source: Immunotherapy Weekly (2010-06-02)

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