Earlier this month, US health authorities found a possible association with ischemic stroke in people 65 years of age or older who received a new Pfizer booster shot in the Vaccine Safety Data Link (VSD) database, and it was more likely when given concurrently with the flu, Reuters reported on the 26th. .
New data from the U.S. Centers for Disease Control and Prevention (CDC) database showed that the signal from an updated Pfizer COVID-19 booster shot came in early January, and health officials said on Monday that it was "weaker than the agency had indicated."
The new data was presented at a meeting of external experts advising the FDA on vaccine policy, after which FDA officials said two other safety monitoring databases had not found a link between injections and stroke, Lorter reported. did.
"While the stroke rates observed in the database have slowed in recent weeks, the signal is still statistically significant and is likely not a coincidence," said Dr. Nicola Klein of Kaiser Permanente, a medical company that maintains the CDC's VSD data. "Most of those received the flu vaccine at the same time, which could be a factor."
“Further investigation into this matter is needed,” said Walid Gellad, a professor at the University of Pittsburgh School of Medicine. "Sometimes the signal is not clear," he told Reuters. "It makes sense to investigate further and, given the known benefit (booster vaccination) in this age group, it doesn't make sense to change practice."
Since 2021, the Korea Centers for Disease Control and Prevention has recommended simultaneous vaccination of the flu vaccine, including Pfizer in the corona vaccine booster shot policy, and public health centers and hospitals have implemented it as it is.
The Korea Centers for Disease Control and Prevention (KCDC) vaccination committee recommends additional vaccination 6 months after the basic vaccination is completed for the booster shot on August 30, 2021. Since then, it has been revealed that it is possible to inoculate with other vaccines without an interval between vaccinations, and from that time on, simultaneous vaccination with the flu vaccine and the corona vaccine was allowed.
The vaccination expert committee said on the day, “As a lot of safety data of the corona vaccine has been accumulated, there is no scientific basis for vaccination at intervals with other vaccines, and considering that influenza vaccination is planned in the fourth quarter of the year, vaccination is recommended without intervals between vaccinations with other vaccines. It was discussed as possible,” he explained.
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