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Ojal john
Ojal john
Research Fellow in Infectious Disease Modelling, London School of Hygiene & Tropical Medicine
Verified email at lshtm.ac.uk
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Cited by
Cited by
Year
Profile: the Kilifi health and demographic surveillance system (KHDSS)
JAG Scott, E Bauni, JC Moisi, J Ojal, H Gatakaa, C Nyundo, CS Molyneux, ...
International journal of epidemiology 41 (3), 650-657, 2012
3772012
Impact of 10-valent pneumococcal conjugate vaccine on invasive pneumococcal disease and nasopharyngeal carriage in Kenya
L Hammitt, AO Etyang, SC Morpeth, J Ojal, A Mutuku, N Mturi, J Moisi, ...
bioRxiv, 369876, 2018
139*2018
Effect of ten-valent pneumococcal conjugate vaccine on invasive pneumococcal disease and nasopharyngeal carriage in Kenya: a longitudinal surveillance study
LL Hammitt, AO Etyang, SC Morpeth, J Ojal, A Mutuku, N Mturi, JC Moisi, ...
The Lancet, 2019
1252019
Excess child mortality after discharge from hospital in Kilifi, Kenya: a retrospective cohort analysis
JC Moïsi, H Gatakaa, JA Berkley, K Maitland, N Mturi, CR Newton, ...
Bulletin of the World Health Organization 89, 725-732, 2011
1112011
Human candidate gene polymorphisms and risk of severe malaria in children in Kilifi, Kenya: a case-control association study
CM Ndila, S Uyoga, AW Macharia, G Nyutu, N Peshu, J Ojal, M Shebe, ...
The Lancet Haematology 5 (8), e333-e345, 2018
1052018
The clinical epidemiology of sickle cell anemia In A frica
AW Macharia, G Mochamah, S Uyoga, CM Ndila, G Nyutu, J Makale, ...
American journal of hematology 93 (3), 363-370, 2018
872018
The INDEPTH standard population for low-and middle-income countries, 2013
O Sankoh, D Sharrow, K Herbst, C Whiteson Kabudula, N Alam, S Kant, ...
Global health action 7 (1), 23286, 2014
712014
Burden of disease in adults admitted to hospital in a rural region of coastal Kenya: an analysis of data from linked clinical and demographic surveillance systems
AO Etyang, K Munge, EW Bunyasi, L Matata, C Ndila, S Kapesa, M Owiti, ...
The lancet global health 2 (4), e216-e224, 2014
672014
Acute seizures attributable to falciparum malaria in an endemic area on the Kenyan coast
SM Kariuki, M Ikumi, J Ojal, M Sadarangani, R Idro, A Olotu, P Bejon, ...
Brain 134 (5), 1519-1528, 2011
662011
Rates of acquisition of pneumococcal colonization and transmission probabilities, by serotype, among newborn infants in Kilifi District, Kenya
CC Tigoi, H Gatakaa, A Karani, D Mugo, S Kungu, E Wanjiru, J Jomo, ...
Clinical infectious diseases 55 (2), 180-188, 2012
602012
Pneumococcal conjugate vaccine given shortly after birth stimulates effective antibody concentrations and primes immunological memory for sustained infant protection
JAG Scott, J Ojal, L Ashton, A Muhoro, P Burbidge, D Goldblatt
Clinical infectious diseases 53 (7), 663-670, 2011
512011
Immunogenicity, impact on carriage and reactogenicity of 10-valent pneumococcal non-typeable Haemophilus influenzae protein D conjugate vaccine in Kenyan children aged 1–4 …
LL Hammitt, J Ojal, M Bashraheil, SC Morpeth, A Karani, A Habib, D Borys, ...
PloS one 9 (1), e85459, 2014
432014
Assessing the efficiency of catch-up campaigns for the introduction of pneumococcal conjugate vaccine: a modelling study based on data from PCV10 introduction in Kilifi, Kenya
S Flasche, J Ojal, OLP De Waroux, M Otiende, KL O’Brien, M Kiti, ...
BMC medicine 15 (1), 113, 2017
392017
Pneumococcal conjugate vaccine induced IgG and nasopharyngeal carriage of pneumococci: Hyporesponsiveness and immune correlates of protection for carriage
J Ojal, LL Hammitt, J Gaitho, JAG Scott, D Goldblatt
Vaccine 35 (35), 4652-4657, 2017
352017
Strong gradients in forest sensitivity to climate change revealed by dynamics of forest fire cycles in the post Little Ice Age era
I Drobyshev, Y Bergeron, MP Girardin, S Gauthier, C Ols, J Ojal
Journal of Geophysical Research: Biogeosciences 122 (10), 2605-2616, 2017
312017
Multiple clinical episodes of Plasmodium falciparum malaria in a low transmission intensity setting: exposure versus immunity
J Rono, A Färnert, L Murungi, J Ojal, G Kamuyu, F Guleid, G Nyangweso, ...
BMC medicine 13 (1), 114, 2015
292015
Sustaining pneumococcal vaccination after transitioning from Gavi support: a modelling and cost-effectiveness study in Kenya
J Ojal, U Griffiths, LL Hammitt, I Adetifa, D Akech, C Tabu, JAG Scott, ...
The Lancet Global Health 7 (5), e644-e654, 2019
272019
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
J Ojal, S Flasche, LL Hammitt, D Akech, MC Kiti, T Kamau, I Adetifa, ...
Vaccine 35 (35), 4561-4568, 2017
262017
Under-five mortality rate variation between the Health and Demographic Surveillance System (HDSS) and Demographic and Health Survey (DHS) approaches
A Deribew, J Ojal, B Karia, E Bauni, M Oteinde
BMC public health 16 (1), 1118, 2016
172016
Effect of Maternally Derived Anti-protein and Anticapsular IgG Antibodies on the Rate of Acquisition of Nasopharyngeal Carriage of Pneumococcus in Newborns
J Ojal, D Goldblatt, C Tigoi, JAG Scott
Clinical infectious diseases 66 (1), 121-130, 2017
102017
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Articles 1–20