There also were 46 miscarriages reported to the VAERS, which the researchers wrote was the most frequently reported pregnancy-related adverse event in the database. In the v-safe pregnancy registry, there were 104 miscarriages, 92.3% of which occurred before 13 weeks of gestation. Data further showed that 98.3% of live births occurred among participants who received the vaccine during the third trimester. There were 35,691 participants in the v-safe surveillance system who indicated they were pregnant and 3,958 participants who enrolled in the v-safe pregnancy registry.Īmong 827 participants in the v-safe pregnancy registry who had a completed pregnancy, 86.1% had a live birth. Pregnancy and neonatal outcomes of interest included miscarriage, stillbirth, preterm birth, congenital anomalies, small size for gestational age and neonatal death. The study included participants aged 16 to 54 years who received the Pfizer-BioNTech or Moderna vaccine and had a completed pregnancy - meaning live-born infant, miscarriage, abortion or stillbirth - at the time of data analysis. Shimabukuro and colleagues used data from the CDC’s smartphone-based tool known as v-safe and the Vaccine Adverse Event Reporting System (VAERS) from Dec. “Furthermore, establishing their safety profiles is critical to inform recommendations on maternal vaccination against COVID-19.” Shimabukuro, MD, MPH, MBA, deputy director of the CDC’s Immunization Safety Office, and colleagues wrote. “Postauthorization monitoring in pregnant persons is necessary to characterize the safety of these new COVID-19 vaccines, which use mRNA, lipid nanoparticles and state-of-the-art manufacturing processes,” Tom T. The findings were recently published in The New England Journal of Medicine.ĭata derived from: Shimabukuro TT, et al. The proportions of adverse outcomes among pregnant patients who received a messenger RNA, or mRNA, COVID-19 vaccine and their infants were similar to incidences reported before the pandemic, according to preliminary data. If you continue to have this issue please contact to Healio
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