Why did smallpox kill so many cherokees in such a short time

see exp.

Explanation:

The cherokees had no protection/immunity against smallpox, because it was an disease that had not been able to cross the sea and affect them. but then the colonists came.  they also did not have proper health measures, and lived close together.

honestly i love the walking dead, mainly the quotes. “well, pardon me young man, excuse the [insert bad word here] out of my gosh darn french, but did you just threaten me? ” sksk (of course it's not the exact words)