Seroprevalence of Anti-Sars-Cov-2 Antibodies among Patients Visiting Hospital-Based Sentinel Sites in the Rift Valley Region, Kenya: DOI: https://dx.doi.org/10.4314/ajhs.v38i1.2. AJHS. 2025;38(1). Accessed April 23, 2026. https://ojs.ajhsjournal.or.ke/index.php/home/article/view/464