Association of COVID-19 Vaccination During Pregnancy With Incidence of SARS-CoV-2 Infection in Infants.

ABSTRACT:

Importance

Pregnant women are recommended to receive COVID-19 vaccination to reduce risk of severe COVID-19. Whether vaccination during pregnancy also provides passive protection to infants after birth remains unclear.

Objective

To determine whether COVID-19 vaccination in pregnancy was associated with reduced risk of COVID-19 in infants up to age 4 months during COVID-19 pandemic periods dominated by Delta and Omicron variants.

Design, setting, and participants

This nationwide, register-based cohort study included all live-born infants born in Norway between September 1, 2021, and February 28, 2022.

Exposures

Maternal messenger RNA COVID-19 vaccination during second or third trimester compared with no vaccination before or during pregnancy.

Main outcomes an

SUBMITTER: Carlsen EO 

PROVIDER: S-EPMC9161123 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature