Chinese resort city reports 263 cases in a day, prompting lockdown
                                
                                
                                    (Newser) -
                                    All flights and trains out of the Chinese tropical resort city of Sanya have been canceled in response to a COVID-19 outbreak, stranding more than 80,000 tourists. A lockdown went into effect Saturday after 263 cases were confirmed, the  BBC  reports. Officials said tourists in Sanya, plus anyone who'...