Health: How can the failure to take antibiotics properly pose a risk to other people's health?

Antibiotics will hold back a lot of stuff.

Explanation:

I said that wrong, so I'll try to explain it better. You know when you'd scrape your knee or get a cut and you'd put some antibiotic gel on it so it wouldn't get infected? Antibiotics also work the other way around, meaning they stop the spread of sickness by nullifying it and stopping it from multiplying. So if you don't take the proper antibiotics you'll have a higher chance of spreading it to other people.

c. emergency contraception

explanation:

used for after unprotected intercourse