Important: VAERS reports alone cannot determine if a vaccine caused an adverse event. Reports may contain incomplete, inaccurate, or unverified information. Correlation does not equal causation.
823 adverse event reports (+669% vs 2008)
In 2009, 823 adverse event reports were filed for DTaP + IPV + Hib (Pentacel) in VAERS. This represents 7.1% of all 11,652 reports for this vaccine.
Of these reports, 30 mentioned death, 148 involved hospitalization, 334 required ER visits, and 4 reported disability.
Compared to the average of 614 reports per year for this vaccine, 2009 was above average (+34%).
Year-over-year change: The large change from 2008 likely reflects a ramp-up in vaccination (e.g., new vaccine rollout or expanded eligibility) rather than a change in per-dose risk.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.