The Centers for Disease Control found that the disease was caused by a virus being passed around by bodily fluids such as semen or blood . HIV was isolated in 1983 and can be treated with protease inhibitors . Psychiatrist John Cade pioneered lithium as a treatment for bipolar disorder . Professor Jan van Dam discovered bacteria as a cover - up on teeth . Professor John Marker 's experiments with plant steroids led to the Pill .
HIV was isolated in 1983 and can be treated with protease inhibitors . Psychiatrist John Cade pioneered lithium as a treatment for bipolar disorder . Professor Jan van Dam discovered bacteria as a cover - up on teeth . Professor John Marker 's experiments with plant steroids led to the Pill .