HIV: Nonprogressors and HIV-Resistant People
A few people with HIV are described as nonprogressors. These people have HIV that does not progress to more severe symptoms or disease, but they can still spread HIV. Most nonprogressors:
A small number of people never become infected with HIV despite years of exposure to the virus. For example, they may have repeated, unprotected sex with an infected person. These people are said to be HIV-resistant. These people are never infected, so they can't spread HIV.
Studies are under way to determine why some people either don't become infected with HIV or, if they do, why they don't develop symptoms or lose CD4+ cells. Research has shown that:
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