Giving short story does not have to be a household name with a moral of giving on the line, as concise as possible, thank you.

Bauer Hesder was an American scientist who studied snake venom. When he was a child, he saw that thousands of people around the world were bitten to death by poisonous snakes every year, and he was determined to work out an antivenom. He injected himself with tiny amounts of venomous snake glands from the age of 15 and gradually increased the dose and toxicity.

This experiment was extremely dangerous and painful. With each injection, he became very ill. Various snake venom composition is different, the mode of action is also different, every injection of a new snake venom, the original anti-venom substance can not be competent, and have to undergo a new anti-venom substance torment. He had been injected with 28 kinds of snake venom. After dangerous and painful trials, it finally paid off. He was bitten 130 times by venomous snakes in one **** and came out unscathed each time. Hesder analyzed the anti-venom substances in his blood and tried out some anti-viper venom drugs, which have saved many people from being bitten by poisonous snakes.