Blood samples from a patient at a Northern California hospital, who is suspected of having been exposed to the deadly Ebola virus, will be tested by the federal Centers for Disease Control and Prevention, officials said. There have been no confirmed cases of Ebola in the United States, though two American relief workers who contracted the disease in Liberia were flown back to America for treatment earlier this month. In the latest case, a patient admitted to South Sacramento Medical Center in California's state capital may have been exposed to the Ebola virus, Kaiser Permanente, the company that operates the hospital, said in a statement Tuesday.