RFK Jr.'s Buckwild Belief That HIV Doesn't Cause AIDS

In January 2026, Peter Duesberg died. He had spent nearly 40 years insisting that HIV does not cause AIDS, and he never changed a single word of his argument. The man who first isolated an oncogene—a legitimate scientific achievement—had become the singular source of a conspiracy theory that, in South Africa alone, has been linked to the deaths of 350,000 people. His theory was not merely fringe; it was a direct pipeline to people refusing medication that works.

The Birth of a Crank Theory

AIDS denialism begins with a genuine scientific puzzle. When AIDS first appeared in 1981, no one knew what caused it. Researchers proposed several hypotheses: poppers (inhalant drugs popular in gay communities), "immune collapse" from repeated STDs and treatments, or even mass hysteria triggered by Reagan-era homophobia. These were legitimate proposals, and scientists investigated them. They found that poppers had been used safely by heart patients for years, that immune collapse had no mechanism, and that the hysteria theory couldn't explain why hemophiliacs were dying. By 1984, when HIV was isolated, most researchers moved on.