Name: Spread of omicron is cause for growing concern
Uploaded: Wed Dec 15 2021 12:24:40 GMT+0000 (UTC)
Duration: 2 min 23 s
Description: The World Health Organization warns that the omicron variant is spreading at an unprecedented rate all around the world, including here in the U.S. A growing number of cities and now schools are being forced to take drastic measures to slow the surge. NBC’s Sam Brock reports for TODAY.

Dec. 15, 202102:23