A plane evacuating 201 Americans from the Chinese city at the center of the virus outbreak continued Wednesday on to Southern California after everyone aboard passed a health screening test in Anchorage, where the aircraft had stopped to refuel.

All the passengers had already been through two screenings in China and were screened twice more in Anchorage by the Centers for Disease Control and Prevention. One passenger received medical attention for a minor injury that happened before boarding the airplane in China, Dr. Anne Zink, Alaska’s chief medical officer, told an early morning news conference after the plane left.