The WHO declared the omicron variant first discovered in South Africa of concern.
Dr. Peter Hotez talks about this variant and when we will know if vaccines are effective against it.
When will we know the effectiveness of vaccines against the omicron variant? | Video | CNN
2021-11-29T15:23:42.177Z
The WHO declared the omicron variant first discovered in South Africa of concern. Dr. Peter Hotez talks about this variant and about | Health | CNN