The authors would like to acknowledge the valuable contributions and support of the following individuals, teams, and institutions: PAHO’s Janete da Silva and Cathy Cuellar; PATH’s Colleen Conroy, Willow Gerber, and Rebeca Quiroga; and CDC’s James A. Mercy, Associate Director for Science, Division of Violence Prevention, National Center for Injury Prevention and Control, and Mark Anderson, Division of Emergency and Environmental Health Services, National Center for Environmental Health, for reviewing and commenting on the manuscript drafts. PAHO’s Hillary Anderson and PATH’s Rebecca Quiroga composed the Resources Section found at the end of the book, and Edna Quirós of PAHO provided administrative support. PAHO’s Central American country offices and the.