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.
#271 most reported symptom for this vaccine
Pleural effusion has been reported 9 times in association with Influenza, Seasonal (Fluad Quadrivalent) vaccination in VAERS. This represents 0.2% of all 4,184 reports for this vaccine.
Among these reports, 2 mentioned death (22.22%) and 8 involved hospitalization (88.9%).
Pleural effusion is the #271 most frequently reported symptom for Influenza, Seasonal (Fluad Quadrivalent) out of 673 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 9 reports of Pleural effusion after Influenza, Seasonal (Fluad Quadrivalent) vaccination may seem alarming, but context is critical.
The 22.22% 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.