President Obama sending up to 3,000 American military into the hot zone in Africa, to help fight the dead little ebola virus. The president today calling it a national security priority, saying it is... See More
President Obama sending up to 3,000 American military into the hot zone in Africa, to help fight the dead little ebola virus. The president today calling it a national security priority, saying it is spreading out of control. So many now asking, what if the virus goes airborne, could it come here? ABC's chief medical editor Dr. Richard Besser, now on the urgent race against time tonight. Reporter: I saw firsthand doctors stretched to the limit battling ebola in west Africa. Take a look. Patients with ebola are everywhere. And today, president Obama sounding the alarm, sending those 3,000 military troops to the hot zone. It's a potential threat to global security. Reporter: The American troops will build 17 healthcare centers treating 100 patients each and train as many as 500 health care workers a week. In Liberia, we saw doctors with so little. This makeshift clinic a bare bones operation. So he's totally covered up for going into the ebola ward. The final part is putting this hood on, but they don't have hoods that are ready made, so they're making hoods out of other protective equipment. The longer this outbreak lasts, the greater the chance ebola could mutate to an airborne form, unlikely, but dangerous. Today, congress heard from Dr. Kent Brantly, who survived the deadly disease. We cannot fool ourselves into thinking that the vast Atlanta ocean will protect us from the flames of this fire. Reporter: David, with all the encouraging news I heard today, one big thing is missing. The president says our troops will not be treating ebola patients. That leaves the question, who will? There are so few doctors in west Africa right now.
This transcript has been automatically generated and may not be 100% accurate.