Dr.Sayan Mukherjee is a consultant internal medicine and COVID specialty with a special interest in immunology and rheumatology, practicing in Kolkata. He has 5 years of experience in medicine (3 years as a resident, one year as a house physician in medicine, and one year as an assistant professor of medicine). He is an international affiliate member of the American College of Asthma Allergy and Immunology, Junior Member of the European Academy of Asthma and Clinical Immunology. He is also a member of the European lupus society. He is experienced in COVID-related general and ICU management.