Boosters have been shown to restore some of the protection lost with omicron's rise Scientists know the omicron variant will cause many breakthrough infections. Given that omicron is now the dominant strain in the U.S., maybe it's time to rethink that booster shot. Michaeleen Doucleff
President Biden addressed growing concerns about the omicron variant in speech President Biden is laying out his next steps for taking on the omicron variant, including giving out more at-home tests and sending support teams to overwhelmed hospitals. Selena Simmons-Duffin
Biden plans to expand testing and vaccination to take on the omicron variant NPR's Ari Shapiro speaks with Andy Slavitt, former senior adviser to President Biden's pandemic response team, about the White House's latest efforts to combat the coronavirus. Elena Burnett
Extra learning time is helping these students catch up from COVID interruptions After school "learning hubs" are helping some high school students in North Carolina catch up on academic time lost due to COVID — and stay on track for graduation. Anya Kamenetz
Procter & Gamble recalls 32 dry shampoo and conditioner products over benzene concern The company said it had not received any reports of adverse events related to the products but was issuing the recall as a precautionary step. Joe Hernandez
It's the shortest day of the year. Things can only get brighter from here Tuesday is the winter solstice in the Northern Hemisphere. That means from now till June, each day will be a little bit longer — and brighter. Here are some ways you can celebrate the season. Rachel Treisman
No pay for staff. No patient supplies. No heat. This is health care in Afghanistan When the Taliban took over, predictions were made that the country's health care system would collapse. That's no longer just a forecast, says Dr. Paul Spiegel after his five-week mission there. Susan Brink
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