Denmark preprint study concludes that “Stealth” Omicron BA.2 is more transmissible than BA.1 in unvaccinated people and vaccines still offer protection.

Medical Mythbusting Commentary for February 9, 2022

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Source:
‘Stealth’ Omicron is more infectious than Omicron, but vaccines still protect

Reference:
Transmission of SARS-CoV-2 Omicron VOC subvariants BA.1 and BA.2: Evidence from Danish Households