New data from one U.S. Centers for Disease Control and Prevention (CDC) database shows a possible stroke risk link for older adults who received an updated Pfizer /BioNTech COVID-19 booster shot, but the signal is weaker than what the agency had flagged earlier in January, health officials said on Thursday.
COVID-19 booster shot, but the signal is weaker than what the agency had flagged earlier in January, health officials said on Thursday.
Dr. Nicole Klein of healthcare company Kaiser Permanente, which maintains VSD data for the CDC, said the rate of strokes observed in the database had slowed in recent weeks, but the signal was still statistically significant, meaning likely not by chance. FDA scientist Richard Forshee said the agency plans to study whether there is any increased risk of stroke from receiving the two shots at the same time.
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