About the Authors

Jacobien Veenemans

Affiliations Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands, Laboratory for Microbiology and Infection Control, Amphia Hospital, Breda, The Netherlands

Laura R. A. Schouten

Affiliation Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands

Maarten J. Ottenhof

Affiliation Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands

Theo G. Mank

Affiliation Department of Parasitology, Public Health Laboratory, Haarlem, The Netherlands

Donald R. A. Uges

Affiliation Laboratory for Clinical and Forensic Toxicology and Drug Analysis, Department of Pharmacy, University Medical Center, University of Groningen, Groningen, The Netherlands

Erasto V. Mbugi

Affiliations Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Ayşe Y. Demir

Affiliation Laboratory for Clinical Chemistry and Haematology, Meander Medical Centre, Amersfoort, The Netherlands

Rob J. Kraaijenhagen

Affiliation Laboratory for Clinical Chemistry and Haematology, Meander Medical Centre, Amersfoort, The Netherlands

Huub F. J. Savelkoul

Affiliation Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands

Hans Verhoef

hans.verhoef@wur.nl

Affiliations Cell Biology and Immunology Group, Wageningen University, Wageningen, The Netherlands, MRC International Nutrition Group, London School of Hygiene and Tropical Medicine, London, United Kingdom

Competing Interests

The authors have read the journal’s policy and have the following conflicts: QuikRead tests and trimagnesium dicitrate were donated by Orion Diagnostica, Espoo, Finland and Jungbunzlauer, Ladenburg, Germany, respectively; supplements were manufactured and donated by Medisan, Heerenveen, The Netherlands. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HV JV. Performed the experiments: JV HV LRAS MJO EVM. Analyzed the data: JV HV. Contributed reagents/materials/analysis tools: TGM DRAU AYD RJK HFJS. Wrote the paper: JV HV.