More coronavirus infections were reported from South Korea to France to Qatar on Saturday after health officials in Washington state, Oregon and California on Friday reported a worrying development: new cases among people who have not traveled recently to countries hit hard by the outbreak or come into contact with anyone known to have the disease, which public health officials refer to as community transmission.
The four new cases Friday bring the total number of covid-19 cases detected through the U.S. public health system to 19, according to the Centers for Disease Control and Prevention.