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Is This the Reason For Blood Clots After COVID Vaccination?

Summary by Cindy Olmstead

There may be an explanation for the rare but serious blood clots reported among some people who received AstraZeneca's COVID-19 vaccine. Researchers believe the blood clot occurrences are similar to heparin-induced thrombocytopenia (HIT), in which heparin triggers the immune system to produce antibodies that activate platelets. Drugs other than heparin can cause clotting disorders that strongly resemble HIT and, according to researchers, in rare cases, the AstraZeneca vaccine may be another...