The omicron variant’s family tree has grown substantially over the last year. The brood now encompasses a subvariant soup with alphanumeric names such as BA.2, BA.5 and BF.7.
Here’s what you need to know about COVID’s XBB.1.5 ‘Kraken’ variant
The omicron variant’s family tree has grown substantially over the last year. The brood now encompasses a subvariant soup with alphanumeric names such as BA.2, BA.5 and BF.7.