COVID-19: Why are there so many new Omicron sub-variants, like BA.4 and BA.5? - Newshub

5/9/2022 12:00:00 AM2 years 11 months ago

We are increasingly hearing about new Omicron sub-variants with names such as BA.2, BA.4 and now BA.5.

Why are there so many types of Omicron? All viruses, SARS-CoV-2 included, mutate constantly. The vast majority of mutations have little to no effect on the ability of the virus to transmit from one … [+1179 chars]

full article...