title: New resistant strain of HIV worries health officials.
mesh_terms: D018450:Disease Progression; D024882:Drug Resistance, Viral; D015658:HIV Infections / Q000503:physiopathology / Q000635:transmission / Q000821:virology*; D006282:Health Personnel; D006801:Humans; D009519:New York City; D012747:Sexual Partners; D047568:Unsafe Sex