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.
#467 most reported symptom for this vaccine
No reaction on previous exposure to drug has been reported 54 times in association with Measles, Mumps & Rubella (MMR II) vaccination in VAERS. This represents 0.1% of all 89,976 reports for this vaccine.
Among these reports, 0 mentioned death (0.00%) and 2 involved hospitalization (3.7%).
No reaction on previous exposure to drug is the #467 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 54 reports of No reaction on previous exposure to drug after Measles, Mumps & Rubella (MMR II) vaccination may seem alarming, but context is critical.
The mortality rate among these reports is very low at 0.00%, suggesting most cases are non-fatal.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.