Ifedayo Adetifa

Anti-Severe Acute Respiratory Syndrome Coronavirus 2 Immunoglobulin G Antibody Seroprevalence Among Truck Drivers and Assistants in Kenya.Kagucia EW, Gitonga JN, Kalu C, Ochomo E, Ochieng B, Kuya N, Karani A, Nyagwange J, Karia B, Mugo D, Karanja HK, Tuju J, Mutiso A, Maroko H, Okubi L, Maitha E, Ajuck H, Mukabi D, Moracha W, Bulimu D, Andanje N, Aman R, Mwangangi M, Amoth P, Kasera K, Ng'ang'a W, Nyaguara A, Voller S, Otiende M, Bottomley C, Agoti CN, Ochola-Oyier LI, Adetifa IMO, Etyang AO, Gallagher KE, Uyoga S, Barasa E, Bejon P, Tsofa B, Agweyu A, Warimwe GM, Scott JAG, Magarini Sub-County TDA SARS-CoV-2 Serosurveillance Team, The Busia County TDA SARS-CoV-Serosurveillance Team
Open Forum Infect Dis, (2021). 8:ofab314

COVID-19 transmission dynamics underlying epidemic waves in Kenya.Brand SPC, Ojal J, Aziza R, Were V, Okiro EA, Kombe IK, Mburu C, Ogero M, Agweyu A, Warimwe GM, Nyagwange J, Karanja H, Gitonga JN, Mugo D, Uyoga S, Adetifa IMO, Scott JAG, Otieno E, Murunga N, Otiende M, Ochola-Oyier LI, Agoti CN, Githinji G, Kasera K, Amoth P, Mwangangi M, Aman R, Ng'ang'a W, Tsofa B, Bejon P, Keeling MJ, Nokes DJ, Barasa E
Science, (2021). 374:989-994

Prevalence of SARS-CoV-2 Antibodies From a National Serosurveillance of Kenyan Blood Donors, January-March 2021.Uyoga S, Adetifa IMO, Otiende M, Yegon C, Agweyu A, Warimwe GM, Scott JAG
JAMA, (2021). 326:1436-1438

Temporal trends of SARS-CoV-2 seroprevalence during the first wave of the COVID-19 epidemic in Kenya.Adetifa IMO, Uyoga S, Gitonga JN, Mugo D, Otiende M, Nyagwange J, Karanja HK, Tuju J, Wanjiku P, Aman R, Mwangangi M, Amoth P, Kasera K, Ng'ang'a W, Rombo C, Yegon C, Kithi K, Odhiambo E, Rotich T, Orgut I, Kihara S, Bottomley C, Kagucia EW, Gallagher KE, Etyang A, Voller S, Lambe T, Wright D, Barasa E, Tsofa B, Bejon P, Ochola-Oyier LI, Agweyu A, Scott JAG, Warimwe GM
Nat Commun, (2021). 12:3966

Inequities in childhood immunisation coverage associated with socioeconomic, geographic, maternal, child, and place of birth characteristics in Kenya.Allan S, Adetifa IMO, Abbas K
BMC Infect Dis, (2021). 21:553

The importance of supplementary immunisation activities to prevent measles outbreaks during the COVID-19 pandemic in Kenya.Mburu CN, Ojal J, Chebet R, Akech D, Karia B, Tuju J, Sigilai A, Abbas K, Jit M, Funk S, Smits G, van Gageldonk PGM, van der Klis FRM, Tabu C, Nokes DJ, Lshtm Cmmid Covid- Working Group, Scott J, Flasche S, Adetifa I
BMC Med, (2021). 19:35

Seroprevalence of anti-SARS-CoV-2 IgG antibodies in Kenyan blood donors.Uyoga S, Adetifa IMO, Karanja HK, Nyagwange J, Tuju J, Wanjiku P, Aman R, Mwangangi M, Amoth P, Kasera K, Ng'ang'a W, Rombo C, Yegon C, Kithi K, Odhiambo E, Rotich T, Orgut I, Kihara S, Otiende M, Bottomley C, Mupe ZN, Kagucia EW, Gallagher KE, Etyang A, Voller S, Gitonga JN, Mugo D, Agoti CN, Otieno E, Ndwiga L, Lambe T, Wright D, Barasa E, Tsofa B, Bejon P, Ochola-Oyier LI, Agweyu A, Scott JAG, Warimwe GM
Science, (2021). 371:79-82

Comparative performance of WANTAI ELISA for total immunoglobulin to receptor binding protein and an ELISA for IgG to spike protein in detecting SARS-CoV-2 antibodies in Kenyan populations..Nyagwange J, Kutima B, Mwai K, Karanja HK, Gitonga JN, Mugo D, Uyoga S, Tuju J, Ochola-Oyier LI, Ndungu F, Bejon P, Agweyu A, Adetifa IMO, Scott JAG, Warimwe GM
1st International Conference on Public Health in Africa (CPHIA), (2021). :

Prevalence of anti-SARS-CoV-2 IgG antibodies among Kenyan blood donors between June and August 2021..Uyoga S, Otiende M, Adetifa IMO, Karanja HK, Gitonga J, Mugo D, Makale J, Tawa B, Singilai A, Nyagwange J, Tuju J, Aman R, Mwangangi M, Amoth P, Kasera K, Ng’ang’a W, Kilonzo N, Chege E, Yegon C, Rotich T, Orgut I, Kagucia EW, Gallagher KE, Etyang A, Voller S, Bottomley C, Lambe T, Wright D, Tsofa B, Mwangangi J, Barasa E, Bejon P, Ochola-Oyier LI, Warimwe GM, Scott JAG, Agweyu A
1st International Conference on Public Health in Africa (CPHIA), (2021). :

High anti-SARS-CoV-2 IgG antibody seroprevalence among long-distance trucking crews in Kenya within one year of the COVID-19 pandemic..Kagucia EW, Gitonga JN, Kalu C, Kuya N, Ochieng B, Karia B, Ochomo E, Karani A, Nyagwange J, Mugo D, Karanja HK, Tuju J, Mutiso A, Maroko H, Okubi L, Maitha E, Mukabi D, The TDA SARS-CoV-2 Serosurveillance Team, Aman R, Mwangangi M, Amoth P, Kasera K, Ng’ang’a W, Nyaguara A, Voller S, Otiende M, Bottomley C, Agoti CN, Ochola-Oyier LI, Adetifa IMO, Etyang AO, Gallagher KE, Uyoga S, Barasa E, Bejon P, Tsofa B, Agweyu A, Warimwe GM, Scott JAG
1st International Conference on Public Health in Africa (CPHIA), (2021). :

Serosurveillance for SARS-CoV-2 Antibodies in a cohort of Health Care Workers in Kenya..Etyang AO, Lucinde R, Gitonga JN, Kalu C, Karani A, Nyagwange J, Mugo D, Karanja HK, Tuju J, Mutiso A, Maroko H, Okubi L, Maitha E, Mukabi D, The HCW SARS-CoV-2 Serosurveillance Team, Aman R, Mwangangi M, Amoth P, Kasera K, Ng’ang’a W, Nyaguara A, Voller S, Otiende M, Bottomley C, Agoti CN, Ochola-Oyier LI, Adetifa IMO, Gallagher KE, Uyoga S, Barasa E, Bejon P, Tsofa B, Agweyu A, Warimwe GM, Scott JAG
1st International Conference on Public Health in Africa (CPHIA), (2021). :

All-cause and cause-specific mortality in Kilifi Health and Demographic Surveillance System, in Kenya in the period of the COVID-19 pandemic..Otiende M, Nyagura A, Bottomley C, Walumbe D, Mochama G, Amadi D, Nyundo C, Kagucia W, Etyang AO, Adetifa IMO, Maitha E, Chondo E, Nzomo E, Aman R, Mwangangi M, Amoth P, Wangari N, Barasa E, Mwangangi J, Bejon P, Agweyu A, Williams TN, Scott JAG
1st International Conference on Public Health in Africa (CPHIA), (2021). :

Upper airways colonisation of Streptococcus pneumoniae in adults aged 60 years and older: A systematic review of prevalence and individual participant data meta-analysis of risk factors.Smith EL, Wheeler I, Adler H, Ferreira DM, Sa-Leao R, Abdullahi O, Adetifa I, Becker-Dreps S, Esposito S, Farida H, Kandasamy R, Mackenzie GA, Nuorti JP, Nzenze S, Madhi SA, Ortega O, Roca A, Safari D, Schaumburg F, Usuf E, Sanders EAM, Grant LR, Hammitt LL, O'Brien KL, Gounder P, Bruden DJT, Stanton MC, Rylance J
J Infect, (2020). 81:540-548

Impact of the Introduction of Rotavirus Vaccine on Hospital Admissions for Diarrhea Among Children in Kenya: A Controlled Interrupted Time-Series Analysis.Otieno GP, Bottomley C, Khagayi S, Adetifa I, Ngama M, Omore R, Ogwel B, Owor BE, Bigogo G, Ochieng JB, Onyango C, Juma J, Mwenda J, Tabu C, Tate JE, Addo Y, Britton T, Parashar UD, Breiman RF, Verani JR, Nokes DJ
Clin Infect Dis, (2020). 70:2306-2313

Observational study: 27 years of severe malaria surveillance in Kilifi, Kenya.Njuguna P, Maitland K, Nyaguara A, Mwanga D, Mogeni P, Mturi N, Mohammed S, Mwambingu G, Ngetsa C, Awuondo K, Lowe B, Adetifa I, Scott JAG, Williams TN, Atkinson S, Osier F, Snow RW, Marsh K, Tsofa B, Peshu N, Hamaluba M, Berkley JA, Newton CRJ, Fondo J, Omar A, Bejon P
BMC Med, (2019). 17:124

Effect of ten-valent pneumococcal conjugate vaccine on invasive pneumococcal disease and nasopharyngeal carriage in Kenya: a longitudinal surveillance study.Hammitt LL, Etyang AO, Morpeth SC, Ojal J, Mutuku A, Mturi N, Moisi JC, Adetifa IM, Karani A, Akech DO, Otiende M, Bwanaali T, Wafula J, Mataza C, Mumbo E, Tabu C, Knoll MD, Bauni E, Marsh K, Williams TN, Kamau T, Sharif SK, Levine OS, Scott JAG
Lancet, (2019). 393:2146-2154

Sustaining pneumococcal vaccination after transitioning from Gavi support: a modelling and cost-effectiveness study in Kenya.Ojal J, Griffiths U, Hammitt LL, Adetifa I, Akech D, Tabu C, Scott JAG, Flasche S
Lancet Glob Health, (2019). 7:e644-e654

Effect of 10-valent pneumococcal conjugate vaccine on the incidence of radiologically-confirmed pneumonia and clinically-defined pneumonia in Kenyan children: an interrupted time-series analysis.Silaba M, Ooko M, Bottomley C, Sande J, Benamore R, Park K, Ignas J, Maitland K, Mturi N, Makumi A, Otiende M, Kagwanja S, Safari S, Ochola V, Bwanaali T, Bauni E, Gleeson F, Deloria Knoll M, Adetifa I, Marsh K, Williams TN, Kamau T, Sharif S, Levine OS, Hammitt LL, Scott JAG
Lancet Glob Health, (2019). 7:e337-e346

Health disparities across the counties of Kenya and implications for policy makers, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016.Achoki T, Miller-Petrie MK, Glenn SD, Kalra N, Lesego A, Gathecha GK, Alam U, Kiarie HW, Maina IW, Adetifa IMO, Barsosio HC, Degfie TT, Keiyoro PN, Kiirithio DN, Kinfu Y, Kinyoki DK, Kisia JM, Krish VS, Lagat AK, Mooney MD, Moturi WN, Newton CRJ, Ngunjiri JW, Nixon MR, Soti DO, Van De Vijver S, Yonga G, Hay SI, Murray CJL, Naghavi M
Lancet Glob Health, (2019). 7:e81-e95

Coverage and timeliness of vaccination and the validity of routine estimates: Insights from a vaccine registry in Kenya.Adetifa IMO, Karia B, Mutuku A, Bwanaali T, Makumi A, Wafula J, Chome M, Mwatsuma P, Bauni E, Hammitt LL, Mataza C, Tabu C, Kamau T, Williams TN, Scott JAG
Vaccine, (2018). 36:7965-7974