Epidemiology of COVID-19 infections on routine polymerase chain reaction (PCR) and serology testing in Coastal Kenya 由 Nyagwange, J, Ndwiga, L, Muteru, K, Wamae, K, Tuju, J, Testing Team, C, Kutima, B, Gitonga, J, Karanja, H, Mugo, D, Kasera, K, Amoth, P, Murunga, N, Babu, L, Otieno, E, Githinji, G, Nokes, DJ, Tsofa, B, Orindi, B, Barasa, E, Warimwe, G, Agoti, CN, Bejon, P, Ochola-Oyier, LI