US CDC Exploring Potential Stroke Caused by Pfizer Vaccine - medtigo



US CDC Exploring Potential Stroke Caused by Pfizer Vaccine

Share on facebook
Share on twitter
Share on linkedin
Share on whatsapp



As per Reuters, new data from a U.S. Centers for Disease Control and Prevention (CDC) database suggests a possible link between older adults who received an updated Pfizer (PFE.N)/BioNTech (22UAy.DE) COVID-19 booster shot and an increased risk of stroke, but the signal is weaker than what the agency had signaled in January, according to health officials on Thursday.  

In two additional safety monitoring databases, U.S. Food and Drug Administration officials said they had not discovered a link between the injections and strokes. At a conference of outside specialists who advise the FDA on vaccine policy, the new results were presented. 

 In its Vaccine Safety Datalink (VSD) database, U.S. health officials announced earlier this month that they had found a possible link to ischemic strokes in adults over 65 who received the more recent booster shots. They stated at the time that it was unlikely to pose a genuine clinical risk.  

Dr. Nicola Klein of the healthcare business Kaiser Permanente, which keeps VSD data for the CDC, reported that the rate of strokes recorded in the database had reduced in recent weeks. However, the signal was still statistically significant, indicating that it was probably not coincidental.  

She noted that the majority of confirmed patients had also received a flu shot, which could be a contributing factor. Richard Forshee, an FDA scientist, stated that the agency intends to investigate if receiving the two vaccinations simultaneously increases the risk of stroke.  

Both organizations continue to urge that older persons take the booster doses, which have been modified to target Omicron strains in addition to the original coronavirus. Professor of medicine at the University of Pittsburgh, Dr. Walid Gellad, stated that additional research was necessary.  

“Occasionally, indications are unclear,” Gellad wrote in an email. Given the established benefits (of receiving the booster in this age range), it makes sense to conduct additional research but not to alter current practice. 

Leave a Reply


Free CME credits

Both our subscription plans include Free CME/CPD AMA PRA Category 1 credits.

Digital Certificate PDF

On course completion, you will receive a full-sized presentation quality digital certificate.

medtigo Simulation

A dynamic medical simulation platform designed to train healthcare professionals and students to effectively run code situations through an immersive hands-on experience in a live, interactive 3D environment.

medtigo Points

medtigo points is our unique point redemption system created to award users for interacting on our site. These points can be redeemed for special discounts on the medtigo marketplace as well as towards the membership cost itself.
  • Registration with medtigo = 10 points
  • 1 visit to medtigo’s website = 1 point
  • Interacting with medtigo posts (through comments/clinical cases etc.) = 5 points
  • Attempting a game = 1 point
  • Community Forum post/reply = 5 points

    *Redemption of points can occur only through the medtigo marketplace, courses, or simulation system. Money will not be credited to your bank account. 10 points = $1.

All Your Certificates in One Place

When you have your licenses, certificates and CMEs in one place, it's easier to track your career growth. You can easily share these with hospitals as well, using your medtigo app.

Our Certificate Courses