Chimp controversy
Sensitive PCR analysis of vaccine samples refutes the controversial hypothesis that the AIDS epidemic began with a contaminated oral polio vaccine.
Apr 29, 2001
One of the theories explaining the origin of the AIDS epidemic hypothesized that an oral polio vaccine (OPV), used in the Belgian Congo in the late 1950s, was contaminated when produced in chimpanzee epithelial cell cultures. In the April 27