Geographic patterns and environmental factors associated with human yellow fever presence in the Americas - Hamrick, Patricia Najera (PAHO Health Emergencies Department, Pan American Health Organization) ; Aldighieri, Sylvain (PAHO Health Emergencies Department, Pan American Health Organization, Washington D.C., United States of America) ; Machado, Gustavo (Veterinary Population Medicine Department, University of Minnesota, Saint Paul, Minnesota, United States of America) ; Leonel, Deise Galan (PAHO Health Emergencies Department, Pan American Health Organization, Washington D.C., United States of America) ; Vilca Yengle, Luz María (Hospital Universitari Vall d'Hebron) ; Uriona, Sonia (Hospital Universitari Vall d'Hebron) ; Schneider, Maria Cristina (PAHO Health Emergencies Department, Pan American Health Organization, Washington D.C., United States of America) ; Universitat Autònoma de Barcelona