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The rare simultaneous occurrence of thrombocytopenia (low blood platelets) with blood clots after vaccination raised the original concern about this condition. [citation needed] In many cases where acute thrombosis and thrombocytopenia have been found together after COVID‑19 vaccination, an antibody against platelet factor 4 has been ...
Potential side effects of the 2023 vaccine: This fall’s updated COVID vaccine is new, but it does not produce new, unknown or harsher side effects. “I get that people might be worried about ...
In 2021 a condition resembling HIT but without heparin exposure was described to explain unusual post-vaccination embolic and thrombotic events after the Oxford–AstraZeneca COVID-19 vaccine. [20] [21] [22] It is a rare adverse event (1:1 million to 1:100,000) resulting from COVID-19 vaccines (particularly adenoviral vector vaccines). This is ...
The CDC has issues special guidance for the specific post-vaccine clots, known as vaccine-induced immune thrombotic thrombocytopenia, or VITT.
The Centers for Disease Control and Prevention(CDC) lists the following as potential side effects of getting the COVID-19 vaccine: Pain at the injection side. Redness and swelling at the injection ...
In the original clinical trials for Pfizer-BioNTech's COVID-19 vaccine, for example, less than half of study participants reported side effects, but the shot worked well for the vast majority of ...
As with the original vaccine doses, most COVID-19 booster shot side effects are mild, flu-like and temporary. But, for some people, those symptoms can be so intense they have trouble doing their ...
You might experience some side effects from the COVID vaccine—but they’re usually not much to worry about. The most common one is a sore arm or mild redness or swelling at the injection site ...