Pregnant women who received at least one dose of a COVID-19 vaccine were not at higher risk for miscarriage than their unvaccinated counterparts, according to a trio of new US studies.Miscarriage no more likely in vaccinatedIn the first study, published yesterday in JAMA, researchers from the Vaccine Safety Datalink (VSD) surveillance network used diagnostic and procedure codes and electronic health records to identify and assign gestational ages of miscarriages and ongoing pregnancies from Dec 15, 2020, to Jun 28, 2021.The VSD is a collaboration between the Centers for Disease Control and Prevention (CDC) and nine health systems that represents about 3% of the US population.Among 105,446 pregnancies, 13,160 miscarriages occurred, while