Pharmacovigilance analysis of vaccination errors during pregnancy using VAERS data - PubMed
8 hours ago
- #pregnancy
- #pharmacovigilance
- #vaccination-errors
- Analysis of VAERS data to identify vaccination errors during pregnancy from 2023 to 2025.
- Out of 171,958 reports, 1,413 involved vaccinations during pregnancy, with several error types showing safety signals.
- Key error signals included RSV-wrong product, TDAP-extra dose, TDAP-storage error, and influenza-expired product.
- Live vaccine administrations (e.g., MMR, varicella) were reported, with nearly half unaware of pregnancy at vaccination.
- No birth defects or deaths were reported among the vaccine-error pairs, suggesting errors did not lead to severe outcomes.
- Findings highlight targets for error prevention to reduce wrong-product and scheduling errors while ensuring access to maternal immunizations.