FILE - In this March 29, 2021 file photo, a worker readies syringes with the Moderna COVID-19 vaccine in Metairie, La. The Centers for Disease Control and Prevention is urging all pregnant women to get vaccinated against COVID-19, Wednesday, Aug. 11. The advice comes as hospitals in hot spots around the U.S. see disturbing numbers of unvaccinated mothers-to-be seriously ill with the virus. (AP Photo/Gerald Herbert, File)