Why are there so many new Omicron sub-variants, like BA.4 and BA.5? Will I be reinfected? Is the virus mutating faster? - The Conversation

It’s hard to keep up. But new Omicron sub-variants are emerging that may lead to reinfections and another spike in cases.

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 … [+6077 chars]

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