Investigation 001
What the Slide Cannot Say
Three parasites cause cancer. Nobody is checking for a fourth.
Cancer, how it works and how it is judged
IARC
The agency in Lyon whose working groups decide what counts as a human carcinogen. Group 1 is a verdict on hazard, not on how much cancer; three parasites are on the list, and two of them were put there in 1994.
Connected on the map
Also in Cancer, how it works and how it is judged