Covid cases are spiking in some parts of the U.S., and the highly contagious omicron variant is expected to fuel another virus wave headed into winter.
In New York, some restaurants and Broadway performances closed temporarily this week. The positivity rate in the city doubled to 7.8% over three days, from Dec. 9 to 12.
Restaurants outside New York have had to shut their doors, too.
That same dynamic may soon affect a broader swath of Americans. Omicron is more contagious than the delta variant,
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