More than 20 drugs are currently available for treating HIV. Because HIV genes mutate so easily and the virus reproduces so rapidly, most people who are infected have many different forms of the virus in their bodies.
Researchers at Duke University Medical Center have developed a highly sensitive test for identifying which drug-resistant strains of HIV are harbored in a patient's bloodstream. The test may provide physicians with a tool to guide patient treatment by predicting if a patient is likely to become resistant to a particular HIV drug, said one of its developers, Dr. Feng Gao. Drug resistance is one of the most common reasons why therapy for HIV, the virus that causes AIDS, fails. read more
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