Pregnancy Outcomes After SARS-CoV-2 Infection in Periods Dominated by Delta and Omicron Variants in Scotland: A Population-Based Cohort Study

Investigators did a national population-based cohort study of women who had SARS-CoV-2 infection in pregnancy between May 17, 2021, and Jan 31, 2022. The primary maternal outcome was admission to critical care within 21 days of infection or death within 28 days of date of infection