As the number of confirmed novel coronavirus cases in the U.S. continued to rise, with two new cases in Washington and the first likely positive test in Rhode Island, Trump administration officials stressed that the government is ramping up efforts to test for and fight the outbreak, which they said is certain to spread to more Americans. Two additional people tested positive for the novel coronavirus in Washington state on Sunday, local health officials said, raising the number of confirmed cases in King County to six, including…