Delhi is experimenting with plasma therapy to treat COVID-19. Plasma therapy involves the transfusion of plasma from a convalescent coronavirus patient to a critical patient. The blood of a recovering patient is rich in antibodies produced by the body to fight the virus, which are expected to help the critical patient recover. Dr D C Sharma, Consultant Endocrinologist MD and CEO Institute of Diabetes, Thyroid and Hormones and Dr Suhas Hardas, Consultant and Interventional Cardiologist, Hardas Heart Care, Pune, answer your queries on the coronavirus.