Kamau, Everlyn; Otieno, James R; Murunga, Nickson; Oketch, John W; Ngoi, Joyce M; de Laurent, Zaydah R; Mwema, Anthony; Nyiro, Joyce U; Agoti, Charles N; Nokes, D James
Lambisia, Arnold W; Makori, Timothy O; Mutunga, Martin; Cheruiyot, Robinson; Murunga, Nickson; Quick, Joshua; Githinji, George; Nokes, D James; Houldcroft, Charlotte J; Agoti, Charles N