Dr. Haider Ghazanfar has been a Medical Doctor in Internal Medicine at the Division of Gastroenterology, Department of Internal Medicine, BronxCare Health System from July 2018 to the present. His research focuses on continued investigations into Infectious Disease Epidemiology; Infectious Disease Surveillance; Vaccination; Emerging Infectious Diseases; Diabetes; SPSS; Microsoft Excel Data Analysis; Internal Medicine; Inflammatory Bowel Disease; and COVID-19.