So I've always been curious what happens when you don't finish a whole pack of antibiotics

because sometimes you feel better halfway through and they tell you to take 12 and you're like 12 that's way too much I'm all set with six right the

challenge is if you take a more limited number then there's the potential that you kill off some of the bad bacteria

that's being targeted, but some of it survives.

And the bacteria that survives then has the opportunity to learn how to defeat that

antibiotic that has been prescribed.

So don't save the other six and give it to my friend without health insurance.

Please don't, please don't do that.

Noted, never will.

Antibiotics are one of the most important discoveries in history,

and they can seem like a magical cure-all.

We take them for granted, and we expect them to fix everything,

from infected cuts to strep throat.

But bacteria are learning to outsmart antibiotics

on a massive scale.

Hundreds of thousands are dying every year,

and that number could soon rise into the millions.

I'm Gabriel Sierra, and this is why it matters.

Today, what happens when bacteria in our body

become resistant to antibiotics,

and a curable infection suddenly becomes incurable.

This morning new details on how our food supply is giving rise to antibiotic

...