Estudo de caso-controle e teste negativo | Associação entre vacinação prévia com BNT162b2 contra COVID-19 e infecção sintomática por SARS-CoV-2 em crianças e adolescentes durante a predominância da variante Ômicron.

Association of Prior BNT162b2 COVID-19 Vaccination With Symptomatic SARS-CoV-2 Infection in Children and Adolescents During Omicron Predominance – JAMA

Estudo relacionado: Risk of Infection and Hospitalization Among Vaccinated and Unvaccinated Children and Adolescents in New York After the Emergence of the Omicron Variant – JAMA

Editorial: Protecting Children Against Omicron – JAMA

Comentário no Twitter (fio – clique para saber mais)

This new JAMA study is worth discussing. It found that, this winter, vax effectiveness in 12-15 yos dropped to 0% after 3-5 months & vaccinated were MORE likely to test+ at month 7. May be confounded (see🧵)
But I don't see this as good reason for boostershttps://t.co/zpkIDdZhnn pic.twitter.com/bxAIDmiR8s

— Tracy Høeg, MD, PhD (@TracyBethHoeg) May 14, 2022