The Centers for Disease Control and Prevention (CDC) has identified a preliminary "safety signal" with the Bivalent Pfizer-BioNTech COVID-19 vaccine, indicating an increased risk of ischemic stroke in people 65 and older.
With notable signs recently of an uptick in heart attacks, strokes, and cardiac arrest in athletes, entertainers, and just regular citizens, the public, especially on social media is in a panic.
The CDC noted that this safety signal was not found in the Moderna version of the bivalent vaccine. However, a large study using data from the Centers for Medicare and Medicaid Services revealed no increased risk of ischemic stroke following vaccination with Pfizer-BioNTech's updated bivalent vaccines, they claim. They also claim the reports to Vaccine Adverse Event Reporting System have also not seen an increase in reporting of ischemic strokes following the administration of this updated formulary. Many experts and doctors around the world would argue both claims, as they see these adverse reactions in their patients, more than often.
Pfizer has been made aware that limited reports are linking its Omicron BA4/BA5 adapted bivalent COVID-19 Vaccine to cases involving ischemia strokes among individuals aged 65 or above who received it as part of their immunization process against coronavirus infection. However, at this time it remains unclear if there is a causal relationship between the vaccine and these reports of ischemic strokes.