About the Authors

Albert Jan van Hoek

Affiliation Immunisation, Hepatitis and Blood Safety Department, Health Protection Agency, London, United Kingdom

Mwanajuma Ngama

MNgama@kemri-wellcome.org

Affiliation Kenya Medical Research Institute, Centre for Geographic Medicine Research-Coast, Kilifi, Kenya

Amina Ismail

Affiliation Division of Disease Surveillance and Response, Ministry of Public Health and Sanitation, Nairobi, Kenya

Jane Chuma

Affiliation Kenya Medical Research Institute, Centre for Geographic Medicine Research-Coast, Kilifi, Kenya

Samuel Cheburet

Affiliation Health Information System, Ministry of Health, Nairobi, Kenya

David Mutonga

Affiliation Division of Disease Surveillance and Response, Ministry of Public Health and Sanitation, Nairobi, Kenya

Tatu Kamau

Affiliation Division of Vaccines & Immunization, Ministry of Public Health and Sanitation, Nairobi, Kenya

D. James Nokes

Affiliations Kenya Medical Research Institute, Centre for Geographic Medicine Research-Coast, Kilifi, Kenya, School of Life Sciences, University of Warwick, Coventry, United Kingdom

Competing Interests

The authors have read the journal’s policy and have the following conflicts: JN has received travel and accommodation support to attend a meeting (2/12/11) convened by GSK at which he acted as a scientific advisor. TK is head of the Division of Vaccines and Immunization, MoPHS Kenya and identified to GAVI the preference to use the GSK Rotarix vaccine for Kenya. This decision was made after the current project was conceived but before its completion. The decision had no influence over the analysis or interpretation of the results presented in this paper. This does not alter the authors’ adherence to all PLoS policies on sharing data and material.

Author Contributions

Conceived and designed the experiments: AJvH JN. Performed the experiments: AJvH MN AI TK SC DM. Analyzed the data: AJvH. Contributed reagents/materials/analysis tools: AJvH AI MN JC SC TK DM JN. Wrote the paper: AJvH.