CNN CNN Newsroom April 19, 2014 18:58:00
The air or live long on surfaces and peep don't typically spread it until they are sick. really sick. when that's the case, they're not up walking around on the busy streets. down in bed. in hospitals or worse. even the dead are highly contagious. >> the story, always the same. >> reporter: this doctor from the cdc helped trace ebola outbreaks for 30er yaos. >> years. >> it's the people dealing with regular patient not thinking of ebo ebola. >> it only take as small amount of the virus anywhere on your skin. >> nothing gets in. >> nothing gets out. >> tim is one of the doctors without boarders...