Cutaneous manifestations of human immunodeficiency virus infection. Part II

Part I appeared in the September issue of theArchives. Bacterial Infections Staphylococcus aureus Infection.— Staphylococcus aureusis the most common pathogen in cutaneous and systemic bacterial infections occurring in HIV-infected individuals.Staphylococcus aureuscolonizes the nose initially and may subsequently infect various sites. In both asymptomatic and symptomatic HIV-infected individuals, theS aureusnasal carriage rate is twice that of control groups.Staphylococcus aureusmay also be locally invasive at the carriage site causing nasal abscess. The incidence ofS aureusinfection in HIV-infected patients is high, causing significant morbidity and mortality. In a study of 46 adult patients with AIDS, autopsy examination revealed that 83% had had a bacterial (nonmycobacterial) infection at some time during the course of their illness, of which 54% had been caused byS aureus. Nosocomial infections occur in HIV-infected patients at the rate of 3.46 per thousand hospital days compared with the rate