HIV (human immunodeficiency virus) is a virus that attacks the body's immune system and remains a major global health ...
Acquired immunodeficiency syndrome (AIDS) is caused by the human immunodeficiency virus (HIV) that attacks the body’s immune system, making it vulnerable to all infections. One of the major concerns ...
In 1981, physicians in Los Angeles reported five young patients with Pneumocystis pneumonia, a rare lung infection later recognized as the first sign of HIV infection and a defining illness of AIDS.
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