Unrecognized "AIDS" in Monkeys, 1969-1980: Explanations and Implications

Area of Science:

• Veterinary Pathology
• Immunology
• Retroviral Research

Background:

• Human immunodeficiency syndrome (AIDS) was recognized in 1981, with a simian form identified between 1983-1985.
• Outbreaks of opportunistic infections resembling AIDS were observed in US monkeys from the late 1960s but went unrecognized.

Observation:

• Early cases of simian AIDS in the United States during the 1960s were documented.
• Analysis of these early cases reveals reasons for delayed recognition, including limited understanding of disease mechanisms.

Findings:

• Key factors hindering earlier recognition included a lack of evidence for human retroviruses and a prevailing scientific climate that undervalued infectious and immunologic disease research.
• An 'epistemological obstacle'—prevailing misconceptions—impeded understanding of the link between viral infection, immunodeficiency, and opportunistic diseases.

Implications:

• Earlier recognition of simian AIDS from monkey studies could have accelerated the identification of human AIDS.
• Prompt identification of human AIDS might have led to earlier implementation of life-saving prevention and treatment strategies.