About the Authors

Matilu Mwau

matilu.mwau@gmail.com

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Ferdinard Adungo

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Silvia Kadima

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Ephantus Njagi

Affiliation Deloitte Consulting LLC, Nairobi, Kenya

Carolyne Kirwaye

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Najma Salim Abubakr

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Lucy Atsieno Okubi

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Mary Waihenya

Affiliation Kenya Medical Research Institute, Nairobi, Kenya

Judi Lusike

Affiliation Clinton Health Access Initiative, Nairobi, Kenya

Jackson Hungu

Affiliation Clinton Health Access Initiative, Nairobi, Kenya

Competing Interests

Dr. Ephantus Njagi is an employee of Deloitte Consulting LLC. However, the company was not involved in any way in the conduct of this research. He participated in his capacity as an immunologist of repute with an interest in diagnostics. Therefore, his affiliation does not affect PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MM FA EN JL JH. Performed the experiments: MM SK CK LO NSA MW. Analyzed the data: MM. Contributed reagents/materials/analysis tools: MM JL JH. Wrote the paper: MM FAO EN.