Unexpected consequences
Author: Peter Jaret
Did the defeat of smallpox open the door to HIV/AIDS? George Mason University scientist Raymond Weinstein reports that smallpox vaccine reduces HIV replication by a factor of five. It may not be a coincidence, he speculates, that as smallpox vaccination programs ended during the 1960s and 1970s, thanks to the eradiation of the virus, HIV began its deadly spread around the world.
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