About the Authors

David W. Brown

Roles Conceptualization, Investigation, Methodology, Writing – original draft, Writing – review & editing

david.brown@brownconsultingroup.org

Affiliation Brown Consulting Group International LLC, Cornelius, North Carolina, United States of America

Collins Tabu

Roles Investigation, Project administration, Writing – review & editing

Affiliation Kenya Expanded Programme on Immunization, Nairobi, Kenya

Kibet Sergon

Roles Data curation, Writing – review & editing

Affiliation World Health Organization Kenya Country Office, Nairobi, Kenya

Stephanie Shendale

Roles Project administration, Writing – review & editing

Affiliation World Health Organization Headquarters, Geneva, Switzerland

Isaac Mugoya

Roles Data curation, Writing – review & editing

Affiliation Maternal and Child Survival Program, Nairobi, Kenya

Zorodzai Machekanyanga

Roles Project administration, Writing – review & editing

Affiliation World Health Organization Regional Office for Africa Inter-Country Support Team, Harare, Zimbabwe

Peter Okoth

Roles Funding acquisition, Project administration, Writing – review & editing

Affiliation UNICEF Kenya Country Office, Nairobi, Kenya

Iheoma Ukachi Onuekwusi

Roles Funding acquisition, Project administration, Writing – review & editing

Affiliation World Health Organization Kenya Country Office, Nairobi, Kenya

Ikechukwu Udo Ogbuanu

Roles Data curation, Funding acquisition, Investigation, Project administration, Writing – review & editing

Affiliation World Health Organization Headquarters, Geneva, Switzerland

Competing Interests

One author (DWB) works for a private consulting company Brown Consulting Group International, LLC his employment with this company does not alter our adherence to PLOS ONE policies on sharing data and materials.