Sudden rise of more transmissible form of Omicron catches scientists by surprise.

Sudden rise of more transmissible form of Omicron catches scientists by surprise – Science

Related:

Omicron’s sister variant spreads faster. So why did the one we call Omicron hit first?

[Preprint] Study suggests SARS-CoV-2 Omicron subvariants BA.2 is even more transmissible than the original variant.

BA.2 is like Omicron’s sister. Here’s what we know about it so far – The Conversation