SARS-COV-2 mutations in North Rift, Kenya - Elius Mbogori; Kelvin Thiongo; Harrison Yunying Deng; Caroline Wangui Gikunyu; Winfrida Cheriro; Stanslaus Musyoki; Richard Biegon; Damaris Matoke-Muhia; Kirtika Patel; Binhua Liang; Elijah Songok (PLoS ONE)