Rare vaccine-related blood clots tied to gene; concentrated antibodies may help the immunosuppressed

The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review. Vaccine-related blood clots tied to gene, antibody variants. New research may help shed light on a rare but serious blood-clotting problem associated with the COVID-19 vaccines from AstraZeneca and Johnson & Johnson . Five unrelated people with this clotting complication, known as vaccine-induced thrombotic thrombocytopenia, all had unusually-structured antibodies against a protein called PF4 that is involved in blood clotting, the researchers found.