A passenger wearing a face mask arrives at Los Angeles International Airport Friday. Federal officials now require people traveling from West Africa to enter the U.S. at one of five airports equipped to screen them for signs of Ebola.
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Meghan, 23, began experiencing hallucinations at 19. "Driving home, cars' headlights turned into eyes. The grills on the cars turned into mouths and none of them looked happy. It would scare the crap out of me," Meghan says.
Marvi Lacar for NPR
Avian influenza, or bird flu, causes an infectious and contagious respiratory disease. In the lab, several scientists have made the H5N1 strain more contagious, a controversial line of research.