title: 1999 USPHS/IDSA Guidelines for the Prevention of Opportunistic Infections in Persons Infected with HIV: Part I. Prevention of Exposure.
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000517:prevention & control*; D001424:Bacterial Infections / Q000209:etiology / Q000382:microbiology / Q000517:prevention & control*; D004781:Environmental Exposure; D005516:Food Microbiology; D006801:Humans; D016273:Occupational Exposure; D010272:Parasitic Diseases / Q000209:etiology / Q000469:parasitology / Q000517:prevention & control*; D014195:Travel; D014777:Virus Diseases / Q000209:etiology / Q000517:prevention & control* / Q000821:virology; D014871:Water Microbiology