Dr. Gallo is recognized internationally for his co-discovery of HIV as the cause of AIDS. As a biomedical research scientist, he has spent much of his career working to eliminate AIDS and other viral chronic diseases. In the early 1980s, Gallo and his team also pioneered the development of the HIV blood test, which enabled healthcare laborers to screen for the AIDS virus for the first time, leading to a more rapid diagnosis while simultaneously protecting patients receiving blood transfusions. His research also helped physicians develop HIV therapies to prolong the lives of those infected with the virus. His 1996 discovery that a natural compound known as chemokines can block the HIV virus and halt the progression of AIDS was hailed by Science magazine as one of that year’s most important scientific breakthroughs.