WASHINGTON (AP) — U.S. health officials are expanding their checks of international travelers for signs of a worrisome new virus from China, even as they say the risk to Americans so far is very low. For “the individual American, this should not be an impact on their day-to-day life,” Health and Human Services Secretary Alex Azar told reporters Tuesday. So far, there are five confirmed cases of coronavirus in the U.S., and no sign that they have spread the respiratory illness to anyone around them. While reports from China suggest that people there may have spread the illness before showing symptoms, there is no evidence of that in the U.S., stressed Dr.