The more that Ebola makes headlines, the more it sows confusion.

Many Americans are asking basic questions about the virus, like whether they can get it from a doorknob or a pet or from riding a plane.

The sense of confusion has been fed by a shifting response to the Ebola outbreak in the United States on the part of the government and officials. After resisting calls for the appointment of an "Ebola czar," President Obama named one on Friday. And after saying the disease would be stopped in its tracks in the U.S., Thomas Frieden, head of the Centers for Disease Control and Prevention, said the agency would "rethink" its infection control procedures now that two nurses have contracted