You’re getting a blip on the radar, and you have to do further investigation to discover whether that airplane is friend or foe.” “These strokes are not a confirmed adverse event at the moment,” he said. William Schaffner, an infectious disease expert at Vanderbilt University and a member of the CDC Advisory Committee on Immunization Practices’ Covid-19 Vaccine Work Group. The number of strokes detected is relatively small, said Dr. Of about 550,000 seniors who got Pfizer bivalent boosters and were tracked by the VSD, 130 had strokes in the three weeks after the shot, according to a CDC official who spoke to CNN on condition of anonymity because they weren’t authorized to share the data.
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The CDC said it had identified possible confounding factors in the data coming from the VSD that may be biasing the data and need further investigation. The Vaccine Safety Datalink, or VSD, is a network of large health systems across the nation that provides data about the safety and efficacy of vaccines through patients’ electronic health records. Ischemic strokes, the most common form, are blockages of blood to the brain. (Photo by Suzanne Kreiter/The Boston Globe via Getty Images) Boston Globe/Boston Globe/Boston Globe via Getty ImagesĪ Covid-19 'senior wave' is driving up hospitalizationsĪ rapid response analysis of that signal revealed that seniors who got an bivalent booster might be more likely to have ischemic strokes within the first three weeks after their shots, compared with weeks four through six. The hospital is operating at above its normal capacity because there is so much illness, such as RSV, flu and COVID. Worcester, MA - December 12: EMTs transfer and deliver patients in the busy ambulance bay at UMass Memorial Medical Center. VAERS is not comprehensive and certainly not rigorous enough to make sweeping statements about the safety of vaccines. In multiple places on the VAERS website you can find warnings like: “The reports may contain information that is incomplete, inaccurate, coincidental, or unverifiable” or “The inclusion of events in VAERS data does not imply causality”. This means anyone can report a case here and it’s not verified. While it’s very useful in finding safety signals and finding hypotheses, it’s a passive surveillance system. Adverse events can be reported to the Vaccine Adverse Event Reporting System (VAERS), an early warning system designed to provide surveillance of safety concerns related to vaccination.
#Pfizer second booster side effects full#
No! As it stands, millions of people have been vaccinated already, and Moderna (18 and older) and Pfizer/BioNTech (16 and older) vaccine have even received full FDA approval. Should I be worried about other adverse side effects being reported? Only the anti-bodies your body creates to fight the disease are left behind. If a severe side effect were to occur, like myocarditis, it would be during that time. mRNA, which is the technology used in the Pfizer and Moderna vaccines, degrades in the body naturally after a few days, and the spike protein it creates only stays for a couple weeks. They do not develop years after they are used.
Records show that side effects, if any, occur within 2 months of vaccination. History! Billions of people throughout time have been vaccinated and while extremely rare side effects can happen with any vaccine, nearly all these side effects can also occur more seriously through normal infection of a virus. How do we know the COVID-19 vaccine won't have long-term side effects? This is completely normal and may last a day or two. While the body is creating this plan, our immune system believes it is fighting an actual virus and this can cause side effects like fever, chills, muscle pain, etc.
#Pfizer second booster side effects how to#
Vaccines, the COVID-19 vaccine in particular, activate the immune system which then gets to work on creating a blueprint on how to fight and protect the body against infection.
Most people will experience mild short-term side effects, such as pain at the injection site. What side effects from the COVID-19 vaccine are considered normal or expected?
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