[Preprint] Estudo mostra efetividade significativamente reduzida da vacina da Pfizer em crianças de 5 a 11 anos após o surgimento da variante Ômicron.

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

Comentários:

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