Underscored by a pretty solid argument here (love him or hate him, it's worth the read):

http://www.rushlimbaugh.com/daily/2014/0...

This is a huge danger and vulnerability because of how easy it is to move around the world now.

Any sufficiently virulent disease with a relatively long incubation period where the infected person is contagious. But before frank symptoms appear will slip right through any and all border security. No matter what country you are talking about.

The longer the incubation and contagious period, the more widely rooted the outbreak becomes.

The ONLY reason Ebola hasn't spread around more than it has is where it is originating.

If a disease like that originated in Europe for instance, it could infect a scary percentage of populace before frank symptoms and deaths began to appear.

With the further danger that Europe is a major transit point for the world. Providing vulnerability to almost any country in the world.

Epidemics/Pandemics are terrifying, and for good reason.

The black plague wiped out a good bit of Europe and the average mortality then, without modern medicine was roughly what Ebola is even with modern medicine.

And diseases mutate, which will also affect their virulence and mortality.

The deceased healthcare worker was working as part of a project sponsored by Samaritan's Purse. Samaritan's Purse is a charity run by Franklin Graham, the son of the famed Christian preacher Billy Graham. The Graham family is of noble character, but altruism has its penalties.