National Geographic: A day after announcing the first diagnosis of an Ebola case in the United States, public health officials and experts on Wednesday said they expect more cases to enter the U.S. and it's uncertain how far the disease will spread, even as they worked to reassure the public that the virus would be contained.
"While it is very likely we will see more imported cases, it is too early to say if this will happen on a regular basis," said Jen Kates, vice president and director of global health and HIV...