U.S ebola patient's condition deteriorates from serious to 'critical'

The first person to be diagnosed with Ebola within the US has deteriorated from a serious to a critical condition, doctors in the state of Texas say.

Thomas Duncan, who caught the virus in his native Liberia, is being treated at a Dallas hospital in isolation.

Texas Health Presbyterian Hospital issued a six-word statement about Thomas Duncan on Saturday, saying only that "Mr Duncan is in critical condition."

Earlier his condition had been described as serious but stable