COVID-19 Vaccines: A Risk Factor for Cerebral Thrombotic Syndromes

Plain language title and summary

COVID-19 Vaccines: A Risk Factor for Stroke

This research sought to determine if there is an increased risk of stroke in patients after receiving the COVID-19 vaccine. Cerebral venous thrombosis was of particular interest because this rare variant of stroke is generally seen in younger women of child-bearing potential due to the physiological risk factors inherent to this patient population.

Using the U.S. Centers for Disease Control and Prevention (CDC) and Food and Drug Administration (FDA) Vaccine Adverse Events Reporting System (VAERS), reports of stroke were extracted from January 1, 1990 to December 31, 2023.VAERS case numbers after the COVID-19 vaccines were compared to the numbers after the influenza vaccines as well as to all vaccines in the database.

There were 5137 cases of cerebral thromboembolism in 36 months after COVID-19 vaccines compared to 52 cases for the influenza vaccines over a period of 408 months and 282 cases for all other vaccines (excluding COVID-19) in 408 months. The alarming number of reports of stroke in VAERS after the COVID-19 vaccines over a much shorter period of time demonstrate an unacceptable risk for this serious complication.

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Given VAERS very low rate of reporting, these figures are deeply alarming. ABN