Cedars-Sinai Researchers Find COVID-19 Vaccine Produces Antibodies Far Longer Than Expected

A study from Cedars-Sinai’s Smidt Heart Institute suggests that immune system dysfunction could be causing long COVID-19. The study found that patients with long COVID-19 produced antibodies against the virus for an extended period after vaccination, with especially high levels of nucleocapsid antibodies. The implications of this sustained immune response are still unclear, and researchers are now seeking a definitive biomarker for diagnosing and understanding long COVID-19.