As many as one in 300 HIV patients never get sick and never suffer damage to their immune systems and AIDS experts said on Wednesday they want to know why. Most have gone unnoticed by the top researchers, because they are well, do not need treatment and do not want attention, said Dr. Bruce Walker of Harvard Medical School. But Walker and colleagues want to study these so-called elite" patients in the hope that their cases can help in the search for a vaccine or treatments. So far Walker and colleagues have not been able to find out why certain people can live for 15 years and longer with the virus and never get ill. The AIDS virus usually kills patients within two years if they are not treated. Walker has tracked down 200 elite patients and has now joined up with other prominent AIDS researchers to find at least 1,000 "elites" in North America and as many as possible globally.
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