Snakebite Immunity Research Spurs Universal Antivenom Hope

Tim Friede from Wisconsin let snakes bite him hundreds of times and injected himself with venom.

He wanted to become immune to snake venom and help people.

Scientists studied his blood and found it has defenses that protect against many snake venoms.

Now, they hope his body could help create a universal antivenom to save lives.

Many people die or are seriously hurt by snakebites each year, especially in poorer areas.

This could improve treatment.