Maria Maria Guzman and her husband are both working in a battle against Dengue for 20 years now. She works at the Tropical Medicine Institute Pedro Kourí (IPK), in Havana, Cuba as one of its head virologist. Her work there has been acknowledged to have made significant contributions in the field of pathogenesis, diagnosis, epidemiology, and clinical progression of this disease. The good doctor has been with the Cuban academy of Science for the Developing Worlds but she concentrates in the fight against Dengue. She is currently a member of the Pan American Health Organization (PAHO), World Health Organization (WHO), and the Special Program for Research and Training in Tropical Diseases (TDR).