https://www.pbs.org/newshour/health/what-to-know-about-xbb-1-5-a-new-and-highly-transmissible-covid-19-subvariant
The XBB.1.5 subvariant — nicknamed ‘Kraken’ — is arguably the most genetically rich and most transmissible SARS-CoV-2 omicron subvariant yet.
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