another officer was nurse fonnie. i'm going to leave it there. i have more, but i see we're running a little short on time, and i thought it would be wonderful to just open up the room to questions. and during the can course of that, i might be able to tell you a little bit more about the results as we now see them in terms of the mutation rate of ebola and what ebola's doing right now in west africa. thank you very much. [applause] >> please, questions. please use a microphone for your question. [laughter] >> any thoughts? any questions? yeah? yes. >> there was an interesting spread in the sunday new york times about people, photographs of workers in africa including an american, steven hatch, from massachusetts. my question is i gather one or two people have survived in america, and knowing american medicine as i do, they had all the bells and whistles, they got a lot of transfusions. however, why do the people in the photographs in the new york times, a young african man, a survivor of ebola. do some people just because of their unique whateve