"How many times do top officials have to say that the Ebola virus is not airborne?"

"A lot, apparently."

"Here is President Obama Thursday: 'This is not an airborne disease. It is not easy to catch.'"

"And the day before: 'It is not like the flu. It is not airborne.'"

"And Friday, a reporter asked the inevitable question about airborne Ebola when Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, held a press briefing about nurse Nina Pham's transfer to the National Institute of Health."