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Author

Donald O. Akech

Observed names: Akech, D., Akech, Donald, D Akech, D. Akech, Donald Akech, Donald O Akech, Donald. Akech
ORCID: 0000-0002-2637-3708
Observed ORCID: 0000-0002-2637-3708
OpenAlex ID: A5083378849
Population effect of 10-valent pneumococcal conjugate vaccine on nasopharyngeal carriage of Streptococcus pneumoniae and non-typeable Haemophilus influenzae in Kilifi, Kenya: findings from cross-sectional carriage studies
2014 · Laura L Hammitt, Donald O Akech, et al. · The Lancet Global Health · 196
Effect of ten-valent pneumococcal conjugate vaccine on invasive pneumococcal disease and nasopharyngeal carriage in Kenya: a longitudinal surveillance study
2019 · Laura L Hammitt, Anthony O Etyang, et al. · The Lancet · 155
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A Preliminary Study of Pneumonia Etiology Among Hospitalized Children in Kenya
2012 · Laura L. Hammitt, Sidi Kazungu, et al. · Clinical Infectious Diseases · 144
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SARS-CoV-2 seroprevalence in three Kenyan health and demographic surveillance sites, December 2020-May 2021
2022 · Anthony O. Etyang, Ifedayo Adetifa, et al. · PLOS Global Public Health · 31
Sustaining pneumococcal vaccination after transitioning from Gavi support: a modelling and cost-effectiveness study in Kenya
2019 · John Ojal, Ulla Griffiths, et al. · The Lancet Global Health · 27
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The importance of supplementary immunisation activities to prevent measles outbreaks during the COVID-19 pandemic in Kenya
2021 · CN Mburu, J Ojal, et al. · BMC Medicine · 26
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Sustained reduction in vaccine-type invasive pneumococcal disease despite waning effects of a catch-up campaign in Kilifi, Kenya: A mathematical model based on pre-vaccination data
2017 · John Ojal, Stefan Flasche, et al. · Vaccine · 25
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SARS‐CoV‐2 seroprevalence and implications for population immunity: Evidence from two Health and Demographic Surveillance System sites in Kenya, February–December 2022
2023 · E. Wangeci Kagucia, Abdhala K. Ziraba, et al. · Influenza and Other Respiratory Viruses · 24
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The impact of introduction of the 10-valent pneumococcal conjugate vaccine on pneumococcal carriage in Nigeria
2023 · Aishatu L. Adamu, J. Ojal, et al. · Nature Communications · 17
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Evaluation of population immunity against SARS-CoV-2 variants, EG.5.1, FY.4, BA.2.86, JN.1, JN.1.4, and KP.3.1.1 using samples from two health demographic surveillance systems in Kenya
2024 · Doreen Lugano, Bernadette Kutima, et al. · BMC Infectious Diseases · 11
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Population immunity to pneumococcal serotypes in Kilifi, Kenya, before and 6 years after the introduction of PCV10 with a catch-up campaign: an observational study of cross-sectional serosurveys
2023 · Katherine E Gallagher, Ifedayo M O Adetifa, et al. · The Lancet Infectious Diseases · 10
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Impact of 10-valent pneumococcal conjugate vaccine on invasive pneumococcal disease and nasopharyngeal carriage in Kenya
2018 · Laura L. Hammitt, Anthony O. Etyang, et al. · bioRxiv (Cold Spring Harbor Laboratory) · 9
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Seroprevalence of Immunoglobulin G against measles and rubella over a 12-year period (2009–2021) in Kilifi, Kenya and the impact of the Measles-Rubella (MR) vaccine campaign of 2016
2025 · C.N. Mburu, J. Ojal, et al. · Vaccine · 4
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Active vaccine safety surveillance: Experience from a prospective cohort event monitoring study of COVID-19 vaccines in Kenya
2025 · Don B Odhiambo, Donald Akech, et al. · PLOS Global Public Health · 2
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Profile: The Kenya Multi-Site Serosurveillance (KEMIS) collaboration
2025 · E. Wangeci Kagucia, Shirine Voller, et al. · Gates Open Research · 2
Profile: The Kenya Multi-Site Serosurveillance (KEMIS) collaboration
2024 · E. Wangeci Kagucia, Shirine Voller, et al. · Gates Open Research · 2
Nasopharyngeal competition dynamics are likely to be altered following vaccine introduction: bacteriocin prevalence and diversity among Icelandic and Kenyan pneumococci
2023 · Madeleine E. B. Butler, Melissa J. Jansen van Rensburg, et al. · Microbial Genomics · 2
SARS-CoV-2 Seroprevalence in three Kenyan Health and Demographic Surveillance Sites, December 2020-May 2021
2022 · Anthony O. Etyang, Ifedayo Adetifa, et al. · medRxiv · 2
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Seroprevalence of antibodies against diphtheria, tetanus, and pertussis over a 12-year period in children in Kilifi, Kenya (2009-2021)
2026 · Caroline N. Mburu, John Ojal, et al. · International Journal of Infectious Diseases · 1
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The Effect of a 5-Day Course of Azithromycin on Streptococcus Pneumoniae Carriage and Antimicrobial Resistance Among Kenyan Children Discharged From Hospital
2026 · Tanya E Libby, Angela Karani, et al. · The Journal of Infectious Diseases · 1
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Evaluation of statistical models of carriage to predict the impact of the 10-valent pneumococcal conjugate vaccine on invasive pneumococcal disease in Nigeria
2025 · Aishatu L. Adamu, John. Ojal, et al. · Vaccine X · 1
Comparative performance of the InBios SCoV-2 DetectTM IgG ELISA and the in-house KWTRP ELISA in detecting SARS-CoV-2 spike IgG antibodies in Kenyan populations
2024 · Bernadette Kutima, Eunice Wageci Kagucia, et al. · Wellcome Open Research · 1
Evaluation of population immunity against SARS-CoV-2 variants, EG.5.1, FY.4, BA.2.86, JN.1, and JN.1.4, using samples from two health demographic surveillance systems in Kenya
2024 · Doreen Lugano, Bernadette Kutima, et al. · medRxiv · 1
Predicted serotype distribution in invasive pneumococcal disease (IPD) among children less than five years prior to the introduction of the Pneumococcal Conjugate Vaccine (PCV) in Nigeria
2022 · Aishatu L Adamu, John. Ojal, et al. · medRxiv · 1
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Trends and patterns of varicella zoster virus infection in Kilifi: A population-based serosurvey
2026 · Antipa K. Sigilai, Caroline N. Mburu, et al. · PLOS Global Public Health
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Works count: 47
Citation count: 704
H-index: 10
I10-index: 11
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