Director of Centers for Disease Control and Prevention Dr. Tom Frieden speaks during a news conference after confirming that a patient at Texas Health Presbyterian Hospital has tested positive for Ebola, the first case of the disease to be diagnosed in the United States, announced Tuesday, Sept. 30, 2014, in Atlanta. The person, an adult who was not publicly identified, developed symptoms days after returning to Texas from Liberia and showed no symptoms on the plane, according to the Centers for Disease Control and Prevention. (AP Photo/John Bazemore)

The US Ebola case: 5 things to know

Health officials on Tuesday announced the first case of Ebola diagnosed in the United States — a man isolated in intensive care at Texas Hea…