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.
#1328 most reported symptom for this vaccine
Differential white blood cell count abnormal has been reported 15 times in association with Influenza, Seasonal (Fluvirin) vaccination in VAERS. This represents 0.0% of all 119,695 reports for this vaccine.
Among these reports, 0 mentioned death (0.00%) and 5 involved hospitalization (33.3%).
Differential white blood cell count abnormal is the #1328 most frequently reported symptom for Influenza, Seasonal (Fluvirin) out of 3021 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 15 reports of Differential white blood cell count abnormal after Influenza, Seasonal (Fluvirin) vaccination may seem alarming, but context is critical. With 119,695 total reports for this vaccine (representing many millions of doses), Differential white blood cell count abnormal appears in only 0.0% of reports.
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.