In 2012, one disease killed 460 000 children before their fifth birthdays.

482,000 CHILDREN,
in ONE YEAR

There were 207,000,000 estimated cases that year.

The disease: malaria.
It's fairly preventable, so it's not really much of a threat to "us". It's also treatable, has a much lower fatality rate, and the symptoms are, IMO, quite a bit less terrifying than Ebola virus disease.

Malaria is already endemic in many parts of the world*, and I think it's important to prevent Ebola from spreading. Consider, however, what we're accustomed to when it comes to malaria.

Once it was endemic in North America, and is partially responsible for the USA defeated the British in the American Revolution.