European authorities and the World Health Organization (WHO), a branch of the United Nations, classified the growing number of AIDS diagnoses as an epidemic. In addition to the outbreak in the U.S., patients with similar symptoms were documented in 15 European countries, 7 Latin American countries, Canada, Zaire, Haiti, Australia and Japan. Of particular concern was an outbreak in central Africa among heterosexual patients. In the U.S., the mortality rate approached 100%.
"HIV and AIDS: An Origin Story." PublicHealth, 31 Oct. 2019, www.publichealth.org/public-awareness/hiv-aids/origin-story/.