About the Authors

Gabrielle C. Hunter

Affiliation Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Katty Borrini-Mayorí

Affiliation Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru

Jenny Ancca Juárez

Affiliation Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru

Ricardo Castillo Neyra

Affiliations Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Manuela R. Verastegui

Affiliation Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru

Fernando S. Malaga Chavez

Affiliation Dirección Regional del Ministerio de Salud, Arequipa, Peru

Juan Geny Cornejo del Carpio

Affiliation Dirección Regional del Ministerio de Salud, Arequipa, Peru

Eleazar Córdova Benzaquen

Affiliation Departamento de Microbiología y Patología, Facultad de Medicina, Universidad Nacional de San Agustín, Arequipa, Peru

César Náquira

Affiliation Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru

Robert H. Gilman

Affiliation Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Caryn Bern

Affiliation Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Michael Z. Levy

mzlevy@mail.med.upenn.edu

Affiliation Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MZL CB RHG CN ECB GCH. Performed the experiments: GCH RCN KB-M JAJ MRV. Analyzed the data: GCH MZL RCN. Contributed reagents/materials/analysis tools: ECB KB-M JGCdC FSMC. Wrote the paper: GCH MZL CB RCN RHG.