Pfizer COVID-19 Vaccine Could Cause Stroke: Official Warning Issued in US

An updated COVID-19 vaccine from US drug maker Pfizer Inc and its German partner BioNTech may be linked to stroke in the elderly. About this, referring to the data of the American health authorities, writes Reuters.

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The U.S. Centers for Disease Control and Prevention (CDC) and the Food and Drug Administration (FDA) said Jan. 13 that the CDC Vaccine Database has identified a possible problem that makes people over the age of 65 more likely to suffer an ischemic stroke 21 days after receiving the Pfizer/BioNTech bivalent vaccine.

Ischemic stroke, also known as cerebral ischemia, is caused by a blockage in the arteries that carry blood to the brain.

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The FDA and CDC said that other major studies, the CDC Vaccine Adverse Effect Reporting System, databases from other countries, and the Pfizer-BioNTech databases did not flag this safety issue and added that it requires further investigation.

“While the body of evidence currently suggests that this finding is unlikely to represent a real clinical risk, we believe it is important to share this information with the public,” the health authorities said.

Pfizer and BioNTech say they have become aware of limited reports of ischemic strokes in people aged 65 and older after being vaccinated with their updated vaccine.

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"Neither Pfizer, nor BioNTech, nor the CDC, nor the FDA have observed similar results in numerous other monitoring systems in the US and around the world, and there is no evidence that ischemic stroke is associated with the use of company-developed COVID-19 vaccines." the statement says.

This safety issue has not been identified with Moderna's bivalent vaccine, and both the CDC and the FDA continue to recommend that everyone 6 months of age and older get their COVID-19 vaccine up to date.

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