Back in 2006, Sean Bush had one of the most terrifying experiences of his life.

It involved his son Jude, who was two years old and a Southern Pacific rattlesnake.

We lived in the snakeiest plateau in all of Southern California because I liked it there.

I like to live where the snakes live, right?

My son was in the backyard and he saw a little juvenile, little baby rattlesnake

coiled up next to the water sprinkler. He tried to pick it up and put it in a cage for me.

It bit him between his thumb and the next finger.

Bush is an emergency physician who specializes in treating venomous snake bites.

He'd seen this situation play out many times before.

I'd seen a lot of really sick people after rattlesnake bites,

people coming out of the helicopter

just with total body twitching

and just, you know, this bizarre almost alien-like thing

that's just very scary, bleeding and not breathing and

bruising and their whole body swelling.

Fortunately for Jude, his dad knew exactly what to do, and he ended up being okay.

I told my wife at the time, I said, call 911, I'll meet him on the helipad, and I had,

antivened him, ready to go. I had it in my hand.

Venomous snakes bite millions of people every year,

causing tens of thousands of deaths and many more amputations.

In the US, venomous snakes are fairly rare.

When they happen, there's only one thing that can disable the toxins, a snake

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