Paper Finds Vaccine-Induced Blood Clotting Disorder Also Triggered by Infections, But Not COVID

While the rare blood clotting disorder can occur after both the adenovirus COVID-19 vaccines and adenovirus infections, it is not triggered by COVID-19.

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Vaccine-induced thrombotic thrombocytopenia, or VITT, is a type of autoimmune blood clotting disorder that can occur after adenovirus COVID-19 vaccinations. However, researchers recently found that the same pattern of disease can also occur following adenovirus infections.

In a letter to the editor published in the New England Journal of Medicine, researchers wrote that their findings indicate that VITT “is essentially identical to the disorder caused by adenovirus infection that occurs sporadically.”