Superinfection (reinfection): new study in San Francisco offers free resistance and viral load testing.
No one knows if a person who already has HIV can be infected with a different strain. It is important to find out, for many reasons, and a new research project is looking for couples (of any sexual orientation) where both partners are HIV-positive.
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D004352:Drug Resistance, Microbial; D015658:HIV Infections / Q000188:drug therapy / Q000635:transmission / Q000821:virology*; D015497:HIV-1 / Q000187:drug effects / Q000302:isolation & purification; D006801:Humans; D012495:San Francisco; D013045:Species Specificity; D015163:Superinfection; D019562:Viral Load