Latest on Omicron, BA.2 and vaccines
As Omicron cases start to decline in parts of the U.S., health officials are monitoring cases of a new sub-variant called BA.2. Pfizer and Moderna are working on developing future variant-specific vaccines. Dr. Ashish Jha, dean of Brown University School of Public Health, joins Major Garrett on "Red & Blue" to discuss the latest efforts to combat the spread of COVID-19.