NEW : CDC confirms norovirus on Royal Caribbean ship that returned Wednesday . Princess Cruises ship arrives in Houston after norovirus sickens 178 passengers . The cruise line said it is working with the Centers for Disease Control and Prevention to investigate what caused the outbreak aboard its ships. One passenger tells KHOU he was made to feel like `` prisoner '' after falling ill on cruise .
NEW : CDC confirms norovirus on Royal Caribbean ship that returned Wednesday . Princess Cruises ship arrives in Houston after norovirus sickens 178 passengers . The ship turned around because of a fog forecast , not sickness , the cruise company says . One passenger tells KHOU he was made to feel like `` prisoner '' after falling ill on cruise .