New data show no increase in miscarriages among pregnant women who received a messenger RNA-based COVID-19 vaccine, signaling the vaccines are safe for the population, a U.S. health agency said Wednesday. Centers for Disease Control and Prevention (CDC) researchers analyzed numbers from v-safe, a voluntary phone-based surveillance system, and found the occurrence of miscarriages was similar among pregnant women who got a shot and the normal rate. Miscarriage typically occurs in approximately 11- to 16-percent of pregnancies. The analysis found miscarriage rates post-vaccination were approximately 13 percent. CDC Director Dr. Rochelle Walensky said after the results were released that the COVID-19 vaccines are safe and effective. “And it has never been more urgent to increase vaccinations as we face the highly transmissible Delta variant and see severe outcomes from COVID-19 among unvaccinated pregnant people,” she said in a statement. The new analysis said nothing about the Delta variant and emerging …