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Simian Immunodeficiency Virus (SIV) Audio (En español)

An HIV-like virus that can infect monkeys and apes and can cause a disease similar to AIDS. Because HIV and simian immunodeficiency virus (SIV) are closely related viruses, researchers study SIV as a way to learn more about HIV. However, SIV cannot infect humans, and HIV cannot infect monkeys.

See Related Term(s):  Human Immunodeficiency Virus