(Monica Rodman, Sarah Hashemi/The Washington Post)
Up next in National
promo
3:10
Masking is no longer required on planes. Should you do it anyway?
April 19, 2022
promo
2:55
What to expect from the BA.2 'stealth' omicron variant
March 26, 2022
promo
2:33
Your N95 mask questions, answered
February 2, 2022
promo
3:29
Omicron broke through our vaccines. How can we adapt?
January 14, 2022
National

Omicron: What we know about the latest coronavirus variant

January 6, 2022 | 6:06 PM GMT
The latest coronavirus variant has taken over as the dominant strain in the U.S. It works differently from previous variants but can still cause severe covid-19.