Doses of the Moderna COVID-19 vaccine are prepared during a clinic on Nov. 17 in El Monte. (Francine Orr / Los Angeles Times) After Labor Day, California health officials expect to quickly get to work ...

LOS ANGELES — The growing dominance of two new ultra-contagious omicron subvariants is prolonging a wave of coronavirus cases in California and sparking growing concerns from health officials that ...

New COVID-19 booster shots are rolling out in California after federal officials greenlighted a new vaccination formula targeting the latest dominant Omicron subvariants as well as the original ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

The upward track of California’s coronavirus case rate may be easing, but contradictory data are muddying the state’s outlook as a new pair of Omicron subvariants seen in South Africa are increasingly ...

After Labor Day, California health officials expect to quickly get to work on the next expansive phase of the COVID-19 vaccination campaign: distributing and administering newly authorized, ...

Commuters, caught in a reflection, make their way up an escalator after arriving at the North Hollywood Metro station in North Hollywood on Thursday. (Genaro Molina / Los Angeles Times) The growing ...