Tim Friede, a man who injected himself with snake venom, helped create an antivenom that can protect mice from poisonous snakes. Researchers hope for human clinical trials one day.

NEW YORK (AP) — Tim Friede has been bitten by snakes hundreds of times — often on purpose. Now scientists are studying his blood in hopes of creating a better treatment for snake bites.

Scientists identified antibodies that neutralized the poison in whole or in part from the bites of cobras, mambas and other deadly species.