Affiliation: | aDivision of Global Health Protection, US Centers for Disease Control and Prevention, Nairobi, Kenya;bDepartment of Internal Medicine, Yale University, New Haven, CT, USA;cSchool of Mathematics, Statistics & Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa;dSchool of Science and Informatics, Taita Taveta University, Voi, Kenya |