Explore serological diagnostics for COVID-19 in this 44-minute seminar presented by Professor Richard Tedder, Visiting Professor at the Department of Infectious Disease, Imperial College London. Delve into topics such as SARS coronavirus, traditional serology, virus antigens, IgM capture, neutralizing antibodies, antibody levels, and herd immunity. Gain insights on the significance of associations, calibration curves, and outpatient serology. Examine antibodies against NP, third immunity, sensitivities, second infections, seasonal coronaviruses, vaccine-induced immunity, and prevalence. This informative talk, part of The Royal College of Pathologists' seminar series on COVID-19's impact on pathology, offers valuable suggestions and is introduced by virologist and College Fellow, Professor Will Irving.