About the Authors

Akaninyene A. Otu

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

akanotu@yahoo.com

Affiliations Department of Internal Medicine, University of Calabar, Calabar, Cross River State, Nigeria, Foundation for Healthcare Innovation and Development (FHIND) Calabar, Cross River State, Nigeria

Ubong A. Udoh

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Department of Medical Microbiology and Parasitology, University of Calabar, Calabar, Cross River State, Nigeria

Okokon I. Ita

Roles Data curation, Investigation, Methodology, Resources, Software, Validation, Visualization, Writing – original draft

Affiliation Department of Medical Microbiology and Parasitology, University of Calabar, Calabar, Cross River State, Nigeria

Joseph Paul Hicks

Roles Data curation, Formal analysis, Methodology, Project administration, Resources, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Nuffield Centre for International Health and Development, University of Leeds, Leeds, United Kingdom

William O. Egbe

Roles Data curation, Methodology, Project administration, Supervision, Writing – original draft

Affiliation Foundation for Healthcare Innovation and Development (FHIND) Calabar, Cross River State, Nigeria

John Walley

Roles Conceptualization, Data curation, Formal analysis, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing

Affiliation Nuffield Centre for International Health and Development, University of Leeds, Leeds, United Kingdom

Competing Interests

This research was funded by a research grant by AstraZeneca BioPharmaceutical company (https://www.astrazeneca.com/) awarded to two of the co-authors. AstraZeneca did not play any role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. We confirm that this does not alter our adherence to all PLOS ONE policies on sharing data and materials as detailed online in the PLOS ONE guide for authors http://journals.plos.org/plosone/s/competing-interests.