[Preprint] Study shows significantly reduced effectiveness of the Pfizer vaccine in children 5 to 11 after the emergency of the Omicron variant.

Effectiveness of the BNT162b2 vaccine among children 5-11 and 12-17 years in New York after the Emergence of the Omicron Variant – medRxiv

Commentaries:

Pfizer Covid vaccine is less effective in kids 5 to 11, study finds – STAT

Pfizer Covid-19 vaccine effectiveness fell quickly for kids during Omicron surge but still offered some protection against severe disease – CNN

More mask mandates fall as poor COVID vaccine protection noted in young kids – CIDRAP