Risk of Stillbirth Among Women With and Without COVID-19 at Delivery Hospitalization — United States, March 2020–September 2021 https://www.cdc.gov/mmwr/volumes/70/w... Sixth, it was not possible to assess vaccination status in this analysis. However, because COVID-19 vaccines are highly effective, and COVID-19 vaccination coverage among pregnant women was approximately 30% as of July 2021, most women with COVID-19 at delivery were likely unvaccinated. Etiology of Spontaneous Abortion https://www.msdmanuals.com/en-gb/prof... Sporadic cytomegalovirus, herpesvirus, parvovirus, and rubella virus live vaccines, not in pregnancy non-live vaccines have previously been shown to be safe in pregnancy (flu and whooping cough)