ms. morris can probably comment on this as well, we did gain some understanding about some symptoms improvements could make that accelerate our ability to get laboratory tests back in a timely fashion and some other things that have been implemented or are now part of the standard procedure in the bio containment unit. >> we have many, many questions on the phone and, so we are going to start to take one or two from the phone and because they are not here in person, when you answer if you don't mind just say hi, i am and who you are. who is the first question from the call? >> yes, this is katherine welch, rhode island public radio. i was calling first will h firsf they know how to get ebola and secondly what are his symptoms now. >> there is mitchell levy. as we mentioned before, he is not quite certain how he got infected. he thinks it might have been an episode when he was spray washing something. where he might have gotten something straight on him. and his symptoms are the same, fever, little bit of nausea. >> can i and a question? hello? >> please. [ inaudible ] from american at this bet a

ms. rosana morris, the chief nursing officer and chief operating officer at the nebraska medical center and closest to me i would like to extend a warm and personal nebraska welcome to dr. mitchell levy and diana muck poe, parents of the patient. with that, ladies and gentlemen, i would like to open to your questions. we will take questions online and over the telephone as well. who would like to start? >> where he would have come into contact with the virus or is it too hard to tell? >> i asked him about that a lot. he is not certain, but he was around the clinic and inside the clinic and around the clinic. i had a lot of opportunity to be exposed and he does remember one incident and a vehicle with chlorine and he thinks he might have been splashed. he is not exactly certain. >> how are his spirits right now? >> he's enormously relieved to be here. of course it's still quite frightening, but he's hanging in and sounds very strong. he shares in the relief of the rest of his family that he able to come back for good medical treatment here. >> he looks strong. he walked off the plane and wav