The Obama administration is strongly considering ramping up screening for Ebola at major airports in the United States, sources told NBC News. The U.S. is weighing whether to deploy the Centers for Disease Control and Prevention or other personnel to key hubs for flights that originate in West Africa, where there are thousands of cases of the virus, the sources said. The enhanced measures would be a supplement to screenings done at the point of departure in countries with high Ebola infection rates.

Passengers arriving in the U.S. could be questioned about whether they had contact with infected people in their country of origin, and their temperatures could be taken for any warning signs. The boosted screenings at a handful of American airports would cover three-fourths of all arriving passengers from West Africa.

IN-DEPTH

— Andrea Mitchell and Daniel Arkin