Professor of Pediatrics at the University of Colorado School of Medicine and a Professor of Epidemiology at the Colorado School of Public Health, in Colorado, USA, and holds the Jules Amer Chair in Community Pediatrics at Children’s Hospital Colorado. Graduated as an MD from the San Carlos University in Guatemala in 1989, he was boarded in pediatrics at University of Colorado Health Sciences Center in 1995 and Pediatric Infectious Diseases at the Johns Hopkins School of Medicine in 1998. He has led for 25 years clinical trials, implementation research and policy for introduction and safety of vaccines for children in low- and middle-income countries including Hib, pneumococcus, poliovirus, dengue, influenza, and novel coronavirus. Dr. Asturias founded and has served on the Guatemalan National Committee for Immunization Practices, the Poliovirus Contention Commission, and advisory groups for the World Health Organization, including the Global Advisory Committee on Vaccine Safety. He is now the coordinator for the Advance Vaccinology Course of the University of Geneva and Foundation Merieux in France and member of the World Health Organization Expert Advisory Group for the Malaria Vaccine. In 2020, he served his native country, Guatemala as the Presidential Commissioner for the Emergency of COVID-19. He is now leading studies on evaluating the impact of influenza and COVID-19 in agricultural workers and households.