in 1983, the American Association of Blood Banks was told by the CDC that their blood supply was infecting people with the AIDS virus, but they refused to screen the supply due to cost concerns. Published April 7, 2019 at 800 × 533 in TIL in 1983, the American Association of Blood Banks was told by the CDC that their blood supply was infecting people with the AIDS virus, but they refused to screen the supply due to cost concerns.