Rwanda Introduces Ebola Screening -- for Americans

Rwandan officials want to screen travelers from U.S. and Spain amid Ebola fears.

The U.S. Embassy in Rwanda posted the following notice on its website today.

The incubation period of Ebola is generally accepted by health officials as 21 days.

The notice appears to be in response to recent cases in both countries. In addition to the three people diagnosed with the deadly virus in Dallas, an additional five patients transported from West Africa have received treatment for Ebola on American soil. Spain has seen three cases, according to health officials.

"Rwanda is wasting incredible resources screening for something that doesn't exist, an American traveler with Ebola," said Dr. Richard Besser, chief health and medical editor for ABC News.

Besser said the DHS move makes sense if you are going to do entry screening.

"Given we are doing it, this increases to 100% the travelers coming here who will get screened," Besser said.

"However, remember, entry screening would not have picked up the one traveler who has ever introduced Ebola anywhere. His symptoms did not develop until he had been here for four days," Besser said, referring to Thomas Eric Duncan.