About the Authors

Eric S. Halsey, Tadeusz J. Kochel, V. Alberto Laguna-Torres
United States Naval Medical Research Unit Six, Lima, Perú

Morgan A. Marks
Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Eduardo Gotuzzo
Universidad Peruana Cayetano Heredia, Lima, Peru

Victor Fiestas
Instituto Nacional de Salud, Ministerio de Salud, Lima, Peru

Luis Suarez
Direccion General de Epidemiologia, Ministerio de Salud, Lima, Peru

Jorge Vargas
Centro Nacional de Enfermedades Tropicales, Ministerio de Salud, Santa Cruz, Bolivia

Nicolas Aguayo
Organización No Gubernamental Rayos de Sol, Asunción, Paraguay

Cesar Madrid
Hospital Naval, Guayaquil, Ecuador

Carlos Vimos
Direccion Departamental de Pastaza, Ministerio de Salud del Ecuador, Puyo, Ecuador

Corresponding Author

eric.halsey@med.navy.mil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ESH EG TJK VALT. Performed the experiments: EG VF LS JV NA CM CV. Analyzed the data: ESH MAM. Contributed reagents/materials/analysis tools: ESH TJK. Wrote the paper: ESH MAM.