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.
#567 most reported symptom for this vaccine
International normalised ratio increased has been reported 7 times in association with FLU(H1N1) vaccination in VAERS.
Among these reports, 1 mentioned death (14.29%) and 5 involved hospitalization (71.4%).
International normalised ratio increased is the #567 most frequently reported symptom for FLU(H1N1) out of 993 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 7 reports of International normalised ratio increased after FLU(H1N1) vaccination may seem alarming, but context is critical.
The 14.29% 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.