The inventor of penicillin is Fleming, and the nickname of penicillin is what we commonly call penicillin. It was specially invented during World War II to treat fever, various inflammations and so on. Don't underestimate the role of penicillin. When there was no such medicine, a small fever and inflammation could kill people. Penicillin is a drug that can resist bacterial infection. It has a very prominent therapeutic effect on diseases such as fever and cold. At that time, as a drug managed by the military, it was very rare in the market. Therefore, some people even take risks and trade on the black market. It is said that in wealthy families, besides gold, penicillin is also treasured. In fact, to be exact, penicillin was invented before World War II, only because this war promoted the application of this invention. 1932, penicillin was officially put into workshop production. The penicillin produced has saved many American lives. There used to be a saying that Stalin refused to import penicillin to the Americans because of his own face, which led to the death of Soviet commander Wa Tuting due to gunshot wounds. Penicillin, a drug, was later widely used in the Pacific battlefield. During this period, the lives of countless five American soldiers were saved, and the Japanese army, as the enemy, suffered even greater casualties. So penicillin is an epoch-making creation in medicine, and its preciousness can be imagined.