About the Authors

Louise Kuhn

lk24@columbia.edu

Affiliation Gertrude H. Sergievsky Center, Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America

Grace M. Aldrovandi

Affiliation Department of Pediatrics, Children's Hospital Los Angeles, University of Southern California, Los Angeles, California, United States of America

Moses Sinkala

Affiliation Lusaka District Health Management Team, Lusaka, Zambia

Chipepo Kankasa

Affiliation University Teaching Hospital, University of Zambia, Lusaka, Zambia

Katherine Semrau

Affiliation Center for International Health and Development, Boston University School of Public Health, Boston, Massachusetts, United States of America

Prisca Kasonde

Affiliation University Teaching Hospital, University of Zambia, Lusaka, Zambia

Mwiya Mwiya

Affiliation University Teaching Hospital, University of Zambia, Lusaka, Zambia

Wei-Yann Tsai

Affiliation Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, United States of America

Donald M. Thea

Affiliation Center for International Health and Development, Boston University School of Public Health, Boston, Massachusetts, United States of America

for the Zambia Exclusive Breastfeeding Study (ZEBS)

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LK GMA MS CK DMT. Performed the experiments: GMA MS CK PK MM. Analyzed the data: LK KS WYT. Wrote the paper: LK GMA MS CK KS PK MM WYT DMT.