Author: Etyang, Anthony O; Lucinde, Ruth; Karanja, Henry; Kalu, Catherine; Mugo, Daisy; Nyagwange, James; Gitonga, John; Tuju, James; Wanjiku, Perpetual; Karani, Angela; Mutua, Shadrack; Maroko, Hosea; Nzomo, Eddy; Maitha, Eric; Kamuri, Evanson; Kaugiria, Thuranira; Weru, Justus; Ochola, Lucy B; Kilimo, Nelson; Charo, Sande; Emukule, Namdala; Moracha, Wycliffe; Mukabi, David; Okuku, Rosemary; Ogutu, Monicah; Angujo, Barrack; Otiende, Mark; Bottomley, Christian; Otieno, Edward; Ndwiga, Leonard; Nyaguara, Amek; Voller, Shirine; Agoti, Charles; Nokes, David James; Ochola-Oyier, Lynette Isabella; Aman, Rashid; Amoth, Patrick; Mwangangi, Mercy; Kasera, Kadondi; Ng’ang’a, Wangari; Adetifa, Ifedayo; Kagucia, E Wangeci; Gallagher, Katherine; Uyoga, Sophie; Tsofa, Benjamin; Barasa, Edwine; Bejon, Philip; Scott, J Anthony G; Agweyu, Ambrose; Warimwe, George
Title: Seroprevalence of Antibodies to SARS-CoV-2 among Health Care Workers in Kenya Cord-id: 7rh8jkqn Document date: 2021_4_24
ID: 7rh8jkqn
Snippet: BACKGROUND: Few studies have assessed the seroprevalence of antibodies against SARS-CoV-2 among Health Care Workers (HCWs) in Africa. We report findings from a survey among HCWs in three counties in Kenya. METHODS: We recruited 684 HCWs from Kilifi (rural), Busia (rural) and Nairobi (urban) counties. The serosurvey was conducted between 30th July 2020 and 4th December 2020. We tested for IgG antibodies to SARS-CoV-2 spike protein using ELISA. Assay sensitivity and specificity were 93% (95% CI 88
Document: BACKGROUND: Few studies have assessed the seroprevalence of antibodies against SARS-CoV-2 among Health Care Workers (HCWs) in Africa. We report findings from a survey among HCWs in three counties in Kenya. METHODS: We recruited 684 HCWs from Kilifi (rural), Busia (rural) and Nairobi (urban) counties. The serosurvey was conducted between 30th July 2020 and 4th December 2020. We tested for IgG antibodies to SARS-CoV-2 spike protein using ELISA. Assay sensitivity and specificity were 93% (95% CI 88-96%) and 99% (95% CI 98-99.5%), respectively. We adjusted prevalence estimates using Bayesian modeling to account for assay performance. RESULTS: Crude overall seroprevalence was 19.7% (135/684). After adjustment for assay performance seroprevalence was 20.8% (95% CrI 17.5-24.4%). Seroprevalence varied significantly (p<0.001) by site: 43.8% (CrI 35.8-52.2%) in Nairobi, 12.6% (CrI 8.8-17.1%) in Busia and 11.5% (CrI 7.2-17.6%) in Kilifi. In a multivariable model controlling for age, sex and site, professional cadre was not associated with differences in seroprevalence. CONCLUSION: These initial data demonstrate a high seroprevalence of antibodies to SARS-CoV-2 among HCWs in Kenya. There was significant variation in seroprevalence by region, but not by cadre.
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