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2.81 aORPositive attitudes towards vaccination were associated with COVID-19 vaccination (adjusted odds ratio 2.81; 95% confidence interval 1.12–7.04; p = 0.027).

KenyaCOVID-19observed 2022published 2024International journal of environmental research and public healtheurope_pmcdocument of 5 observationsDOI 10.3390/ijerph21010098

50 %Approximately half of SARS-CoV-2 cases were completely asymptomatic.

KenyaCOVID-19published 2026PloS onePubMeddocument of 4 observations

0.27 odds_ratioThe odds of developing severe COVID-19 disease were lower among cases exposed through community gatherings (odds ratio = 0.27, P < 0.001).

KenyaCOVID-19published 2022Journal of global healthPubMeddocument of 24 observations

26.6 %Among 2796 reviewed COVID-19 case records in Kenya, 743 (26.6%) were residents of Nairobi City County.

KenyaCOVID-19published 2022Journal of global healthPubMeddocument of 24 observations

28 %The 14-day secondary attack rate of SARS-CoV-2 among household contacts of PCR-confirmed cases in rural Kenya was 28%.

KenyaCOVID-19observed October 2020 to September 2022published 2023Symptom prevalence and Secondary Attack Rate of SARS-CoV-2 in Rural Kenyan Households: a peurope_pmcdocument of 3 observationsDOI 10.22541/au.168068165.55407669/v1

20.6 %Among 2796 reviewed COVID-19 case records in Kenya, 2340 contacts were listed for 577 (20.6%) cases.

KenyaCOVID-19published 2022Journal of global healthPubMeddocument of 24 observations

1.59 cycle_threshold_unitsThe RT-PCR cycle threshold value (ΔCt) was ~1.59 higher for samples tested in pools compared to samples tested singly on the Kenyan Coast.

KenyaCOVID-19observed mid-May 2020published 2020Wellcome open researcheurope_pmcdocument of 3 observations

13 %Few participants had symptoms: 13% of mothers and 33% of infants experienced symptoms of SARS-CoV-2 infection.

KenyaCOVID-19observed between May 1, 2020-February 1, 2022published 2023PloS onePubMeddocument of 8 observations

0.31 odds_ratioThe odds of developing COVID-19 symptoms were lower among transport sector employees (odds ratio = 0.31, P < 0.001).

KenyaCOVID-19published 2022Journal of global healthPubMeddocument of 24 observations

The 501Y.V2 variant of concern circulated locally in the Comoros Islands during the country’s first major SARS-CoV-2 wave in January 2021.

Kenya501Y.V2 variant of concern · COVID-19observed January 2021published 2021Detection of SARS-CoV-2 variant 501Y.V2 in Comoros Islands in January 2021europe_pmcDOI 10.1101/2021.04.08.21254321

6 samplesSix SARS-CoV-2 positive samples were genome sequenced from the first major infection wave in the Union of Comoros in January 2021.

KenyaCOVID-19observed January 2021published 2021Wellcome open researcheurope_pmcdocument of 3 observations

6 wavesThere were six waves of SARS-CoV-2 cases in Kenya between March 2020 and September 2022.

KenyaCOVID-19observed March 2020 – September 2022published 2022The genomic epidemiology of SARS-CoV-2 variants of concern in Kenyaeurope_pmcdocument of 8 observationsDOI 10.1101/2022.10.26.22281446

23 lineages23 distinct Pango lineages were detected across six counties of Coastal Kenya during Wave 1 of SARS-CoV-2 infections.

KenyaCOVID-19observed Wave 1published 2022eLifeeurope_pmcdocument of 6 observations

3 foldNeutralising antibodies decayed three-fold by month six of COVID-19 diagnosis.

KenyaCOVID-19published 2023Wellcome open researcheurope_pmcdocument of 4 observations

76 introductionsPhylogenetic analysis identified at least 76 independent SARS-CoV-2 introductions into Kenyan coast during the early phase of the pandemic.

KenyaCOVID-19published 2020Tracking the introduction and spread of SARS-CoV-2 in coastal Kenyaeurope_pmcdocument of 3 observationsDOI 10.21203/rs.3.rs-93975/v1

14.2 %Among patients with underlying conditions in Kenya's hospitalized COVID-19 cohort, HIV was present in 14.2%.

KenyaCOVID-19 · VIH/sidapublished 2025Global health actionPubMeddocument of 11 observations

25 yearsThe median age of SARS-CoV-2 positive acute respiratory infection cases in coastal Kenya was 25 years, with an interquartile range of 15–41 years.

KenyaCOVID-19published 2025Longitudinal Epidemiology and Variant Dynamics of SARS-CoV-2 in Coastal Kenya (2020 - 2025europe_pmcdocument of 8 observations

63.6 %Seroconversion rates for anti-spike-IgG increased from 63.6% at day 0 to 100% at day 180 after PCR testing.

KenyaCOVID-19published 2023Wellcome open researcheurope_pmcdocument of 4 observations

SARS-CoV-2 clearance was slower in the malaria group by day 7 (adjusted hazard ratio 0.69 [95% CI 0.51–0.94]; p=0.017).

KenyaCOVID-19 · paludismeobserved by day 7published 2026The Lancet. Global healthPubMeddocument of 8 observations

The FY.4 variant circulated as early as December 2022 in Kenya.

KenyaCOVID-19observed December 2022published 2025Virus evolutioneurope_pmcdocument of 4 observations

28 daysBinding antibody levels peaked at day 28 after PCR testing.

KenyaCOVID-19published 2023Wellcome open researcheurope_pmcdocument of 4 observations

32.5 %Among 1,123 hospitalized COVID-19 patients in Kenya, 32.5% died.

KenyaCOVID-19published 2025Global health actionPubMeddocument of 11 observations

30.9 %SARS-CoV-2 antibody positivity was found in 309 (30.9%) participants.

KenyaCOVID-19observed 2021published 2023Harm reduction journalPubMeddocument of 6 observations

25.8 %More pregnant women living with HIV in Kenya reported travel challenges because of COVID-19 (25.8%).

KenyaCOVID-19 · VIH/sidaobserved October 2020 to July 2022published 2024BMC pregnancy and childbirthPubMeddocument of 4 observations

100 %In mid-May 2020, RT-PCR testing capacity for SARS-CoV-2 was improved by ~100% as a result of adoption of a six-sample pooled testing strategy on the Kenyan Coast.

KenyaCOVID-19observed mid-May 2020published 2020Wellcome open researcheurope_pmcdocument of 3 observations