Hong Kong reported a record 63 local viruses cases on Thursday, the third time in about a week that the city’s new outbreak has breached previous highwater marks.
Of the total confirmed cases, more than half -- 35 -- were of unknown origins, said the city’s health department on Thursday. The new outbreak has now infected over 300 people in less than two weeks, with more than a third of infections unlinked to confirmed cases or existing outbreaks, signaling that hidden chains of transmission are widespread.
