Gagandeep Kang is known for her inter-disciplinary research studying the transmission, development and prevention of enteric infections and their sequelae in children in India. To develop practical approaches to support public health, she has also built national rotavirus and typhoid surveillance networks, established laboratories to support vaccine trials and conducted phase 1-3 clinical trials of vaccines, a comprehensive approach that has supported two WHO pre-qualified vaccines, made by two Indian companies. She is investigating the complex relationships between infection, gut function and physical and cognitive development, and seeking to build a stronger human immunology research in India.

Based at the Christian Medical College, Vellore, she has established strong training programmes for students and young faculty in clinical translational medicine aiming to build a cadre of clinical researchers studying relevant problems in India.