One of the patients is an American physician who chose to do a 2 year post-residency fellowship in Africa.
http://www.cnn.com/2014/08/02/health...html?hpt=hp_t2
I find some some of the comments to be fascinating. Here's 3 from user "Bren":
"I think our prayers are better sent up for the countless other Americans this selfish doctor chose to infect."
"Dr Brantly, you answered a call. That was your choice. But to bring that disease back to your fellow Americans is unforgivable. You are no hero."
"Everyone who comes in contact with him is in danger and he knows it."