SpaceX reports LA County's highest number of workplace COVID-19 cases New data shows the Elon Musk-led company currently accounts for nearly 30% of workplace COVID-19 cases reported by Los Angeles County officials. Vanessa Romo
Omicron is now the dominant Covid strain in the U.S., making up 73% of new infections Underscoring its high transmissibility, in a week, omicron went from a 12.6% share of the variants circulating in the U.S. to a dominant 73.2%, according to the CDC's latest estimates. The Associated Press
Encore: The Weatherman A meteorologist goes up against Alabama's deadly tornadoes, as NPR's Invisibilia explores our relationship with uncertainty. Abby Wendle
The Biden administration is launching a new phone number for mental health crises The Biden administration is putting a quarter of a billion dollars into a new national suicide prevention line. But some say that's not enough to build the infrastructure that's needed. Rhitu Chatterjee
How your brain copes with grief, and why it takes time to heal Grieving is a form of learning, says a scientist who studies the brain's response to loss. When someone you love dies, you have to learn new rules for navigating the world and your brain has to adapt. Berly McCoy
As omicron surges, nations announce rules on gatherings and travel ahead of holidays European nations implemented a wave of new restrictions as case numbers rise. And Israel added the U.S. and Canada to its "red list" of countries from which citizens are barred from travel. Laurel Wamsley
Lawmakers use their breakthrough infections to push COVID-19 vaccines and boosters Democratic Sens. Cory Booker and Elizabeth Warren and Maryland Gov. Larry Hogan all reported mild symptoms. All three had been vaccinated and boosted, and encouraged others to do the same. Rachel Treisman
Hospitals brace for a COVID surge as people travel for the holidays The U.S. is now averaging 125,000 new COVID-19 cases a day. While delta is still surging, the highly transmissible omicron variant likely will become the dominant variant very soon. A Martinez
Moderna says its COVID booster increases protection against omicron Moderna said its current FDA-approved 50-microgram booster shot increased antibody levels against omicron 37-fold compared to pre-booster levels. Jaclyn Diaz
COVID is again raging across the U.S. just as Americans gather for the holidays Sporting events and live theater announced cancellations amid major increases in new coronavirus cases, in large part because of the omicron variant. Jaclyn Diaz