People Who Don’t Get AIDS

January 29, 2019

IN EARLY 1995, a hemophiliac walked into the clinic of physician-immunobiologist Bruce Walker and announced something astonishing: he’d been infected with HIV during a blood transfusion in 1978, had never taken any anti-HIV medications, and yet had never developed AIDS. Walker tested him and found no signs of the virus itself, only a robust immune response to it, confirming that the man was infected. In fact, Walker recalls, it was the most vigorous immune response he’d ever seen.

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