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.
#1265 most reported symptom for this vaccine
Mean cell volume increased has been reported 6 times in association with Pneumococcal (Prevnar13) vaccination in VAERS. This represents 0.0% of all 33,058 reports for this vaccine.
Among these reports, 1 mentioned death (16.67%) and 5 involved hospitalization (83.3%).
Mean cell volume increased is the #1265 most frequently reported symptom for Pneumococcal (Prevnar13) out of 1920 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 6 reports of Mean cell volume increased after Pneumococcal (Prevnar13) vaccination may seem alarming, but context is critical.
The 16.67% mortality rate among these reports is elevated, but this reflects the severity of the condition itself rather than vaccine causation.
This data comes from the Vaccine Adverse Event Reporting System (VAERS), jointly managed by CDC and FDA.