NEW YORK, NY - OCTOBER 23: A health alert is displayed at the entrance to Bellevue Hospital October 23, 2014 in New York City. After returning to New York City from Guinea where he was working with Doctors Without Borders treating Ebola patients, Dr. Craig Spencer was quarantined after showing symptoms consistent with the virus. Spencer was taken to Bellevue hospital to undergo testing. According to reports, test results have confirmed that Spencer has been diagnosed witht the Ebola virus. (Photo by Bryan Thomas/Getty Images)
