Updates are available Correction dated 2019-11-19

Article History

Received: 14 March 2019

Accepted: 26 July 2019

First Online: 7 August 2019

Change Date: 19 November 2019

Change Type: Correction

Change Details: Following publication of the original article [1], the author mentioned that two additional NIH staff were involved in the development of the protocol who did not receive recognition in the Acknowledgments section in their published article.

Ethics approval and consent to participate

: All participating institutions provided ethical review and approval of the study prior to study initiation. Women provide written informed consent to participate in the study. Age of minority varies by country and sites followed local IRB/IEC requirements for enrollment of minors in the study. If the participant is considered a minor in the participating country, written permission is required from the parent(s)/legal guardian and separate written assent is required from the participating minor. If it is not possible to obtain written consent, permission, or assent, e.g., due to illiteracy, participants and their parent(s)/guardian, as appropriate, are able to provide consent, permission, or assent using a fingerprint instead of a signature.The ethics committees of the following institutions provided approval for this study:Centro de Pesquisas Aggeu Magalhães, Fundacão Oswaldo Cruz (FIOCRUZ Pernambuco); Hospital Geral Roberto Santos; Centro de Pesquisas Gonçalo Moniz, Fundacão Oswaldo Cruz (FIOCRUZ Bahia); Yale University; Hospital das Clínicas da Faculdade de Medicina de Riberão Preto da Universidade de São Paulo; University of Alabama at Birmingham; Secretaria Municipal de Saúde do Rio de Janeiro; Instituto Fernandes Figueira, Fundacão Oswaldo Cruz (FIOCRUZ – Rio de Janeiro); University of Wisconsin, Madison; St. Jude Children’s Research Hospital; Universidad de Antioquia, Medellín; Red de Salud de Ladera Empresa Social del Estado; University of Colorado, Denver; Instituto de Nutrición de Centro América y Panamá; Ministerio de Salud Publica y Asistencia Social, Guatemala; Ministerio de Salud Centro Nacional de Diagnostico y Referencia, Nicaragua; University of California, Berkeley; University of Puerto Rico, Medical Sciences Campus; University of Georgia, Athens; Hospital Iquitos César Garayar Garcia; Hospital Regional de Loreto Felipe Arriola Iglesias; and Universidad Peruana Cayetano Heredia.

: Not applicable.

: The authors declare that they have no competing interests.