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.
#836 most reported symptom for this vaccine
Rheumatoid factor negative has been reported 489 times in association with COVID-19 Vaccine vaccination in VAERS. This represents 0.0% of all 1,121,388 reports for this vaccine.
Among these reports, 0 mentioned death (0.00%) and 90 involved hospitalization (18.4%).
Rheumatoid factor negative is the #836 most frequently reported symptom for COVID-19 Vaccine out of 9223 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 489 reports of Rheumatoid factor negative after COVID-19 Vaccine vaccination may seem alarming, but context is critical. With 1,121,388 total reports for this vaccine (representing many millions of doses), Rheumatoid factor negative 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.