Bill Gates, co-founder of the Bill & Melinda Gates Foundation
gives a baby an oral Polio vaccine at the Shadnagar community
health clinic in Andhra Pradesh, India, November 14, 2002. An
experimental AIDS vaccine developed in Oregon has received an $8
million investment from the Bill & Melinda Gates Foundation. The
candidate vaccine quickly stamped out infections in an animal
model of AIDS infection, and protection lasted for at least a
year, in a study reported in May 2011. The vaccine uses a
modified form of cytomegalovirus, or CMV, to prime the immune
system to mount defenses against the AIDS virus, as we reported
During childhood, most people become infected with a virus
called cytomegalovirus, or CMV. Because this virus persists in
its human hosts for life, usually without ever causing harm,
scientists at Oregon Health & Science University theorized it
might serve as an ideal vehicle for vaccinating people against
HIV, the virus that causes AIDS. The basic idea is
straightforward: engineer the mild-manner