HIV/AIDS does not exist.

It's a hoax.

More specifically, according to biochemist David Rasnick, who has been researching this stuff since the '80s, there is no evidence of any virus causing AIDS. To be clear, AIDS does exist, and it's pretty much a collection of known symptoms such as severe weight loss, chronic diarrhoea, recurring fever, persistent fatigue, swollen lymph nodes, and opportunistic infections like pneumonia and tuberculosis, but all of it is caused by environmental factors.