all but one lie bjorn native, thomas eric duncan, has survived. he is from west africa, but a legal u.s. resident. his 20-year-old son says he hasn't seen his dad in a month, shortly before he returned to sierra leone to help treat ebola patie patients. >> even though you the sickness is already out he decided to go and help his people because he wanted to show that he loves his people. >> reporter: the worst ebola outbreak has claimed more than 5,000 lives. the 44-year-old doctor says the job was his calling. >> something inside of me that the people of this part of town needed help. i do this job not because i want to but i firmly believe it was a calling. >> reporter: dr. silia is the third ebola patient to be treated here at the nebraska's bio medical containment unit. his wife just arrived to be by his side. >> the story out of washington this morning, natalie? >> that's right. 100,000 people signed up for obamacare on saturday, the first day of the latest enrollment. now comments made by the self described architect of obamacare. peter alexa