New York City Mayor Bill de Blasio (D) on Monday called on New Yorkers to avoid traveling for the holidays, suggesting they risk bringing back the Wuhan coronavirus to the city and infecting other residents. “I have to urge all New Yorkers: do not travel out of state for the holidays,” De Blasio said during a press briefing at City Hall. “Do not travel to a state with a high infection rate. Do not travel to a country with a high infection rate. “For those who do travel, recognize how important it is to get tested and recognize there is...