A man who took a commercial flight from Liberia that landed in Dallas on Sept. 20 has been found to have the Ebola virus, the Centers for Disease Control and Prevention reported on Tuesday. He is the first traveler to have brought the virus to the United States on a passenger plane. http://www.nytimes.com/2014/10/01/health/airline-passenger-with-ebola-is-under-treatment-in-dallas.html?module=Notification&version=BreakingNews&region=FixedTop&action=Click&contentCollection=BreakingNews&contentID=21060182&pgtype=Homepage

He was not ill during the flight, health officials said. Symptoms developed several days after he arrived, and he is being treated at Texas Health Presbyterian Hospital in Dallas.

A team from the C.D.C. is being dispatched to Dallas to trace any contacts who may have been infected, including health care workers and others with whom the patient spent time in Dallas.