WASHINGTON (AP) — U.S. health officials have warned for months that someone infected with Ebola could unknowingly carry the virus to this country. Texas health officials said there were no other suspected cases in the state, and the Centers for Disease Control and Prevention immediately sought to calm fears that one case would spread widely. Key is finding and tracking anyone who was in close contact with the patient from the time he fell ill until he was put in isolation, said CDC Director Dr.