Joe Biden delivered a stern holiday message to Americans on Thursday - "no Christmas parties" - and warned they face a COVID-19 siege for weeks to come despite the latest moves toward US government approval of a vaccine."The next three to six weeks at minimum ...
are our COVID weeks," Dr. Michael Osterholm, a member of Biden's coronavirus advisory board, told CNN. "It won't end after that, but that is the period right now where we could have a surge upon a surge upon a surge."Osterholm stressed that it would be several months before the nation sees widespread availability of vaccines, the first of which cleared a key US regulatory hurdle on Thursday.A panel of outside advisers to the US Food and Drug Administration voted overwhelmingly to.