Washington, Dhu-AlHijjah 18, 1435, Oct 12, 2014, SPA -- A breach in safety protocol was responsible for the first US case of Ebola transmission, in which a Dallas health worker was infected with the virus, the director of the US Centers for Disease Control says, according to dpa. "We don't know what occurred in the care of the index patient, the original patient in Dallas," Tom Frieden says. "But at some point, there was a breach in protocol and that breach led to infection." -- SPA 18:49 LOCAL TIME 15:49 GMT www.spa.gov.sa/w