Using antiretroviral to prevent HIV could result in drug resistance if routine screening is not done, study finds

Their scientific methods may have been quite different, but their conclusions were not. In asking whether drug resistance could be a problem if antiretroviral (ARV) drugs become a mainstay for HIV prevention, two studies -- one involving a mathematical model and the other assays of cells and tissue -- arrived at the same answer. Resistance could happen if people who are unknowingly already infected use the approach.

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