A Brief History and Global Overview of the HIV Pandemic

• First cases of AIDS were reported in 1981, and HIV was identified as the etiologic agent in 1983^{[CDC 1981; Barré-Sinoussi 1983; Gallo 1984]}
• UNAIDS estimated 36.9 million people were living with HIV worldwide in 2014 (Figure 1), including 2.6 million children younger than 15 years^{[UNAIDS 2014]}
• Approximately 70% of all HIV-infected people live in sub-Saharan Africa,^{[UNAIDS 2014]} and 95% of new HIV infections occur in the developing world[AIDS.gov...

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