About the Authors

Janepsy Diaz

Contributed equally to this work with: Janepsy Diaz, Solana Terrazas, Ana L. Bierrenbach

Affiliation National Institute of Health, Santiago, Chile

Solana Terrazas

Contributed equally to this work with: Janepsy Diaz, Solana Terrazas, Ana L. Bierrenbach

Affiliation National Institute of Health, Santiago, Chile

Ana L. Bierrenbach

Contributed equally to this work with: Janepsy Diaz, Solana Terrazas, Ana L. Bierrenbach

Affiliation Sanas - epidemiologia e pesquisa, São Paulo, Brazil

Cristiana M. Toscano

‡ These authors also contributed equally to this work.

Affiliation Department of Community Health, Institute of Tropical Pathology and Public Health, Federal University of Goiás, Goiânia, Brazil

Gizelton P. Alencar

‡ These authors also contributed equally to this work.

Affiliation School of Public Health, University of São Paulo, São Paulo, Brazil

Andrés Alvarez

‡ These authors also contributed equally to this work.

Affiliation Department of Statistics and Health Information, Ministry of Health, Santiago, Chile

Maria T. Valenzuela

‡ These authors also contributed equally to this work.

Affiliation Medical School, University de los Andes, Santiago, Chile

Jon Andrus

‡ These authors also contributed equally to this work.

Affiliation Sabin Vaccine Institute, Washington, DC, United States of America

Roberto del Aguila

‡ These authors also contributed equally to this work.

Affiliation Pan American Health Organization, PWR-Chile, Santiago, Chile

Juan C. Hormazábal

‡ These authors also contributed equally to this work.

Affiliation National Institute of Health, Santiago, Chile

Pamela Araya

‡ These authors also contributed equally to this work.

Affiliation National Institute of Health, Santiago, Chile

Paola Pidal

‡ These authors also contributed equally to this work.

Affiliation National Institute of Health, Santiago, Chile

Cuauhtemoc R. Matus

‡ These authors also contributed equally to this work.

Affiliation Comprehensive Family Immunization Project, Pan American Health Organization, Washington, DC, United States of America

Lucia H. de Oliveira

oliveirl@paho.org

‡ These authors also contributed equally to this work.

Affiliation Comprehensive Family Immunization Project, Pan American Health Organization, Washington, DC, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ALB CMT LHO JD. Performed the experiments: ALB ST JD. Analyzed the data: ALB ST GPA. Contributed reagents/materials/analysis tools: AA MTV RDA JCH PA PP CRM. Wrote the paper: ALB JA GPA LHO. Interpretation of results: AA MTV RDA JCH PA PP CRM ALB JD ST CMT LHO GPA CMT.