presentation1 Could you check and correct Hello, my name is Koya Tanzaki, and today I would like to talk about first chemotherapy and the developers. The early 20th century, the European people who were going to go to Africa were troubled by terrible local disease. The sleepy sickness in Africa is one of those local disease. By the pandemic of 1896, 800,000 people are killed for ten years by this disease. Paul Ehrlich though there were pigment to attach only at the bacteria which invaded the body, and to sterilize.