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.
#105 most reported symptom for this vaccine
Immediate post-injection reaction has been reported 503 times in association with Measles, Mumps & Rubella (MMR II) vaccination in VAERS. This represents 0.6% of all 89,976 reports for this vaccine.
Among these reports, 1 mentioned death (0.20%) and 17 involved hospitalization (3.4%).
Immediate post-injection reaction is the #105 most frequently reported symptom for Measles, Mumps & Rubella (MMR II) out of 2292 total symptoms.
Disclaimer: VAERS reports describe events that occurred after vaccination but do not establish that the vaccine caused the event. Many reported symptoms may be coincidental or related to underlying conditions.
Seeing 503 reports of Immediate post-injection reaction after Measles, Mumps & Rubella (MMR II) vaccination may seem alarming, but context is critical.
The mortality rate among these reports is very low at 0.20%, suggesting most cases are non-fatal.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.