Study Shows Slight Increase in Stroke Risk for Seniors Receiving Covid-19 and Flu Vaccines Together
A recent study conducted by experts at the US Food and Drug Administration (FDA) found that seniors who receive vaccines for Covid-19 and influenza at the same time may have a slightly higher risk of strokes caused by blood clots in the brain.
The study, which analyzed data from Medicare claims, is the second to discover an elevated risk of stroke for older adults after receiving both vaccines simultaneously.
In January, the FDA and US Centers for Disease Control (CDC) issued a public statement based on the results of their Vaccine Safety Datalink study, which indicated a small and uncertain risk of stroke for older adults who received Pfizer’s bivalent Covid-19 vaccine along with a high-dose or adjuvanted flu shot on the same day.
The FDA’s further investigation found that the increased risk of stroke appears to be primarily driven by the high-dose or adjuvanted flu vaccines, which are specifically designed to boost the body’s immune response.
Additional analysis of Medicare claims data revealed a slightly increased risk of stroke in adults aged 65 and older who received only a high-dose flu shot. However, the absolute risk from high-dose flu shots was found to be miniscule, accounting for just 1-2 strokes for every 100,000 doses.
The overall consensus among experts is that the benefits of vaccination far outweigh any potential risks. While the study results show a small signal, they do not warrant any changes to the current recommendations for Covid-19 and influenza vaccinations.
Managing Concerns and Minimizing Risks
Experts suggest that individuals who are worried about the potential interactions between the vaccines can consider receiving each shot at different times, with a gap of about two weeks between doses.
It is important to note that the study findings are observational and cannot establish a cause-and-effect relationship. The study authors also acknowledge the need for further robust epidemiological investigations into these associations.
Ultimately, the risk of serious diseases such as Covid-19 and influenza for older individuals far outweighs any potential increased risk associated with vaccination.
It is recommended that everyone continue to get vaccinated, as the benefits greatly outweigh the risks. The information should not confuse or deter individuals from receiving their vaccines.
Disclaimer: This article is based on an observational study and has not undergone peer review. It is meant to provide information and should not be considered medical advice. Consult a healthcare professional for personalized recommendations.
