The analysis also revealed that the risk is greater if a person receives a COVID-19 vaccine the same day as a high-dose or adjuvanted flu vaccine.

The Medicare-FDA analysis is the second study to have found a possible link between stroke and COVID-19 and flu vaccines, but the medical establishment still claims that the risk is small.

However, Cleveland Clinic cardiologist Dr. Steve Nissen declared that the "absolute risk is minuscule," especially compared to the risk for those over 85 of dying from COVID-19.

Marco Cavaleri, the head of the office of biological health threats and vaccines strategy at the European Medicines Agency, explained that administration of flu and COVID-19 vaccines at the same time is a common strategy with health officials who want to boost vaccine uptake and address any logistical burdens.