https://www.mercurynews.com/2021/12/27/covid-omicron-case-counts-surge-past-delta-peak-in-some-bay-area-counties/

Across the Bay Area, signs now point to the current surge in coronavirus cases, driven by the highly infectious omicron variant, topping the peak in delta cases over the summer and becoming the region’s second worst wave of infection since the pandemic began.

And with a backlog of testing results from the Christmas weekend still being counted, the spike in new infections is expected to grow quickly.