Philip Bejon

African-specific genetic loci determine iron status and risk of severe malaria and bacteremia in African children.Muriuki JM Mentzer AJ Band G Chong AY Macharia AW Mogire RM Abuga KM Mitchell R Gilchrist JJ Webb EL Ndungu FM Raffield LM Ekunwe L Bentley AR Sirima SB Madhi SA Hill AVS Prentice AM Bejon P Hemani G Smith GD Sandhu MS Elliott AM Williams TN Adeyemo A Atkinson SH
Nat Commun, (2026). :

Longitudinal Epidemiology and Variant Dynamics of SARS-CoV-2 in Coastal Kenya (2020-2025): Clinical Features and Wave Patterns.Lambisia AW Nyiro J Githinji G Katama EN Moraa E Mwita JM Mutunga M Maina G Bejon P Phan MVT Cotten M Dellicour S Ochola-Oyier LI Sande C Holmes EC Nyagwange J Agoti CN
Open Forum Infect Dis, (2026). 13:ofag084

B and T cell responses to pre-erythrocytic R21/Matrix-M and blood-stage RH5.1/Matrix-M malaria vaccines in endemic settings.Bundi CK Munoz O Kibwana E Bellamy D Stockdale L Barrett JR McHugh K Mtaka I Kalinga W Kimani D Nyamako L Keter K Ogwang R Hill AVS Bejon P Hamaluba M Silk SE Minassian AM Draper SJ Olotu AI Kapulu MC Ewer KJ Nielsen CM
Front Immunol, (2026). 17:1743327

Prevalence, spatial and temporal distribution of tungiasis in the Kilifi Health and Demographic Surveillance System (KHDSS) in Kenya.Ouma N Muchiri SK Nyundo C Walumbe D Nyaguara A Maia M Adetifa I Orindi B Bejon P Fillinger U Elson L
BMJ Glob Health, (2026). 11:

Variation in antiviral immunity and inflammation pathways precedes HIV-1 infection in a high-risk African cohort.Kioko M Mwangi S Fwambah L Hassan AS Blackard JT Bejon P Sanders E Ndung'u T Nduati EW Abdi AI
J Clin Invest, (2026). 136:

Pre-COVID-19 ex vivo cross-reactive IFN-gamma cellular response to SARS-CoV-2 spike overlapping peptides is more prevalent among Kenyan compared to Swedish adults.Wanjiku P Orindi B Mwacharo J Chemweno J Karanja HK Kronsteiner B Kai O Wright D Ochola-Oyier LI Sundling C Dunachie S Warimwe GM Farnert A Bejon P Ndungu FM Nduati EW
BMC Infect Dis, (2026). 26:174

Low-dose yellow fever vaccination in infants: a randomised, double-blind, non-inferiority trial.Kimathi D Juan-Giner A Bob NS Orindi B Namulwana ML Diatta A Cheruiyot S Fall G Dia M Hamaluba MM Nyehangane D Karanja HK Gitonga JN Mugo D Omuoyo DO Hussein M Oloo E Kamau N Wafula J Bendera J Silvester N Mwavita J Joshua M Thuranira JM Agababyona C Ngetsa C Aisha N Moki F Buluku T Munene M Mwanga-Amumpaire J Lutwama J Kayiwa J Kamaara E Barrett AD Kaleebu P Bejon P Sall AA Grais RF Warimwe GM
Lancet, (2026). 407:497-504

Malaria vaccine protection against intradermal or venous parasites: a randomized phase 2b human challenge trial.Kapulu MC Orenge F Kimani D Kibwana E Kibet H Mutahi M Datoo MS Bellamy D Musembi J Ngoto O Rashid H Akinyi S Mwatasa MH Nyamako L Keter K Gatheru R Mutiso A Musyoki J Mwacharo J Abebe Y James ER Billingsley PF Ngetsa C Mosobo M Makale J Tawa B Wamae K Ochola-Oyier LI Lawrie A Ramos-Lopez F Roberts R Richie TL Sim BKL Hoffman SL Ewer KJ Hill AVS Hamaluba M Bejon P
Nat Med, (2026). 32:178-185

Pf8: an open dataset of Plasmodium falciparum genome variation in 33,325 worldwide samples.Malaria Genomic Epidemiology Network Abdel Hamid MM Abdelraheem MH Acheampong DO Adam I Aide P Ajibaye O Ali M Almagro-Garcia J Amambua-Ngwa A Amenga-Etego L Aniebo I Aninagyei E Ansah F Apinjoh TO Ariani CV Auburn S Awandare GA Balmer A Bejon P Boene S Bwire G Candrinho B Chidimatembue A Chindavongsa K Comiche K Conway D Dara A Diakite M Djimde A Dondorp A Doumbia S Drury E Fanello CA Ferdig M Figueroa K Gamboa D Golassa L Goncalves S Guindo MDA Hamaluba M Hanboonkunupakarn B Howe K Hussien M Imwong M Ishengoma D Jeans J Kabaghe A Kamuhabwa A Kindermans JM Konate DS Kwiatkowski DP Lee C Lee SK Lee SJ Ley B Llanos-Cuentas A Marfurt J Matambisso G Maude RR Maude RJ Mayor A Mayxay M Maiga-Ascofare O McCann RS Miles A Miotto O Mohamed AO Morang'a CM Murie K Ngasala BE Nguyen TN Nolasco O Nosten F Noviyanti R O'Connor I Oboh M Ochola-Oyier LI Olufunke Falade C Olukosi A Olumide A Olusola FI Onyamboko MA Oriero EC Oyibo WA Pannebaker D Pearson RD Phiri K van der Pluijm RW Price RN Quang HH Rajkumar Devaraju V Randrianarivelojosia M Ranford-Cartwright L Rayner JC Rovira-Vallbona E Rowlands K Ruano-Rubio V Sanchez JF Saute F Shettima S da Silva C Simpson VJ Suddaby S Takken W Thu AM Toure M Unlu E Valdivia HO van Vugt M Waithira N Wellems T Wendler J White N Wuendrich Ogidan R
Wellcome Open Res, (2025). 10:325

Serial cross-sectional school surveys identifies C469Y, P553L, R561H and A675V kelch 13 mutations associated with artemisinin resistance in Western Kenya.Osoti V Wamae K Musau MM Magudha JB Ndwiga L Gichuki PM Okoyo C Rosebella K Mahugu S Aricha S Kandie R Keitany K Kepha S Mwandawiro C Bejon P Snow RW Ochola-Oyier LI
Sci Rep, (2025). 15:38303

MALDI-TOF MS for malaria vector surveillance: A cost-comparison analysis using a decision-tree approach.Karisa J Rist C Tuwei M Ominde K Bartilol B Ondieki Z Musani H Wanjiku C Mwangangi J Mbogo C Rono M Bejon P Maia M
PLoS One, (2025). 20:e0335764

A Pragmatic Trial of Glucocorticoids for Community-Acquired Pneumonia.Lucinde RK Gathuri H Mwaniki P Orindi B Otieno EO Mwakio S Mulemi L Isaaka L Shangala J Saisi M Isinde E Oginga IN Wachira AW Manuthu E Kariuki H Asaava P Nyikuli J Wekesa C Otedo A Bosire H Okoth SB Ongalo W Mukabi DM Lusamba W Muthui B Adembesa I Mithi C Sood M Aliyan NA Gituma B Matiko MG Omondi CA Ombajo LA Kirui N Ochola L Abdi AI Kagucia EW English M Hamaluba M Ochola-Oyier I Kamuya D Bejon P Barasa E Agweyu A Akech S Etyang AO
N Engl J Med, (2025). 393:2187-2197

Controlled human malaria infection studies: insights into recent advances and key immunological and ethical implementation lessons.Ogwang R Adan M Bejon P Kapulu MC
Front Immunol, (2025). 16:1672945

Assessing the Impact of SARS-CoV-2 Spike Mutations on Antibody Binding: A Comparative Assessment of the Wuhan and JN.1 Variants' Full-Length Spikes in a Multiplex Luminex Assay.Waweru G Nyakundi R Kutima B Owuor S Konyino G Gitonga J Lugano D Maina A Musyoki J Ochola L Omondi M Kariuki CK Ogongo P Mwachari C Shee F Agoti C Sande C Uyoga S Kagucia E Agweyu A Bejon P Scott JAG Warimwe GM Ochola-Oyier LI Nyagwange J
Viruses, (2025). 17:

Induction of an early IFN-gamma cellular response and high plasma levels of SDF-1alpha are inversely associated with COVID-19 severity and residence in rural areas in Kenyan patients.Wanjiku P Orindi B Kimotho J Sayed S Shah R Saleh M Mwacharo J Maronga C Olouch V Karanu A Shah J Nneka Z Ochola-Oyier LI Abdi AI Dunachie S Bejon P Nduati EW Ndungu FM
PLoS One, (2025). 20:e0316967

Genomic and clinical epidemiology of SARS-CoV-2 in coastal Kenya: insights into variant circulation, reinfection, and multiple lineage importations during a post-pandemic wave.Lambisia AW Katama EN Moraa E Mwita JM Gallagher K Mutunga M Nyale E Omungala J Mwanga M Murunga N Nyiro J Nyagwange J Sande C Bejon P Githinji G Dellicour S Phan MVT Cotten M Ochola-Oyier LI Holmes EC Agoti CN
BMC Glob Public Health, (2025). 3:80

Making MALDI-TOF MS for entomological parameters accessible: A practical guide for in-house library creation.Karisa J Tuwei M Ominde K Bartilol B Ondieki Z Musani H Rono M Mbogo C Bejon P Mwangangi J Wanjiku C Maia M
PLoS One, (2025). 20:e0330605

R21/Matrix-M malaria vaccine drives diverse immune responses in pre-exposed adults: insights from a phase IIb controlled human malaria infection trial.Kibwana E Bundi C Kimani D Nyamako L Keter K Mutiso A Ogwang R Bellamy D Rapi K Bajer A Provstgaard-Morys S Stockdale L Munoz O Datoo MS Lawrie A Ramos-Lopez F Roberts R Hamaluba M Hill AVS Bejon P Ewer KJ Kapulu M
Front Immunol, (2025). 16:1620365

Vaccine-induced responses to R21/Matrix-M - an analysis of samples from a phase 1b age de-escalation, dose-escalation trial.Bundi C Bellamy D Kibwana E Nyamako L Ogwang R Keter K Kimani D Salman AM Provstgaard-Morys S Stockdale L Hill AVS Bejon P Olotu A Hamaluba M Ewer KJ Kapulu MC
Front Immunol, (2025). 16:1620366

Emergence and transmission dynamics of the FY.4 Omicron variant in Kenya.Musundi S Mwanga M Lambisia A Morobe JM Murunga N Moraa E Ndwiga L Cheruiyot R Musyoki J Mutunga M Guzman-Rincon LM Sande C Mwangangi J Bejon P Ochola-Oyier LI Nokes DJ Agoti CN Nyiro J Githinji G
Virus Evol, (2025). 11:veaf035