Why are there so many new Omicron sub-variants, like BA.4 and BA.5? - Moneyweb

Will I be reinfected? Is the virus mutating faster?

By now, many of us will be familiar with the Omicron variant of SARS-CoV-2, the virus that causes Covid. This variant of concern has changed the course of the pandemic, leading to a dramatic rise in … [+5861 chars]

full article...