Severe COVID-19 infection was defined as requiring inpatient admission and remdesivir with or without monoclonals. We compared the rate of severe COVID-19 during pregnancy between patients who were 1) never vaccinated, or were vaccinated 2) before pregnancy, 3) in the first trimester, 4) in ...
The vaccine effectiveness was related to the timing of the vaccine, with patients who received a mRNA vaccine within 7–90 days prior to COVID‐19 being less likely to develop severe disease compared to all other patients (p = 0.019). There was no correlation between disease severi...