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The management of human immunodeficiency virus (HIV) infection continues to evolve rapidly. Amazing advances have been made in therapy of primary infection, prevention of opportunistic infections, and prevention of perinatal transmission since the first cases of acquired immune deficiency syndrome (AIDS) were described in 1981. Perinatal transmission rates have decreased from 20–30% early in the epidemic to < 1% in high-income countries with the use of antiretroviral therapy and scheduled cesarean delivery.
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