Our Team Our team of Pediatric Infectious Diseases specialists includes medical doctors who have trained in both pediatrics and the study of infections, and a highly trained support staff. Doctors/Researchers Francis Gigliotti, M.D., Chief Samir Bhagwat, Ph.D. Mary T. Caserta, M.D. Cynthia Christy, M.D. Damian J. Krysan, M.D., Ph.D. Jennifer Nayak, M.D. Jing Wang, Ph.D. Geoffrey A. Weinberg, M.D. Melanie Wellington, M.D., Ph.D. Terry W. Wright, Ph.D.