Myrna Watanabe | Jun 1, 2003 | 8 min read
Courtesy of Frank Kiernan PICTURE OF HEALTH? This 15-year-old mangabey at the Yerkes National Primate Research Center in Atlanta has been SIV-infected for at least 10 years. In the past, physicians who treated AIDS patients understood that this deadly disease was one of immune deficiency. Their patients were immunosuppressed, subject to opportunistic infections, and had odd cancers. Today, because of continuing research on the human and primate immune systems and their responses to retr