title: Drug-resistant virus tracked through 3 men.
mesh_terms: D004352:Drug Resistance, Microbial; D015658:HIV Infections / Q000635:transmission* / Q000821:virology*; D015497:HIV-1 / Q000187:drug effects* / Q000302:isolation & purification; D006801:Humans; D008297:Male; D018894:Reverse Transcriptase Inhibitors / Q000494:pharmacology; D012747:Sexual Partners; D006113:United Kingdom; D015215:Zidovudine / Q000494:pharmacology
chemical_list: D018894:Reverse Transcriptase Inhibitors; D015215:Zidovudine