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Collins Okoyo
Collins Okoyo
Kenya Medical Research Insitute
Verified email at kemri.org - Homepage
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Cited by
Year
Associations between school-and household-level water, sanitation and hygiene conditions and soil-transmitted helminth infection among Kenyan school children
MC Freeman, AN Chard, B Nikolay, JV Garn, C Okoyo, J Kihara, ...
Parasites & vectors 8, 1-13, 2015
982015
Results of a national school-based deworming programme on soil-transmitted helminths infections and schistosomiasis in Kenya: 2012–2017
C Mwandawiro, C Okoyo, J Kihara, E Simiyu, S Kepha, SJ Campbell, ...
Parasites & vectors 12, 1-18, 2019
702019
Monitoring the impact of a national school based deworming programme on soil-transmitted helminths in Kenya: the first three years, 2012–2014
C Okoyo, B Nikolay, J Kihara, E Simiyu, JV Garn, MC Freeman, ...
Parasites & vectors 9, 1-13, 2016
622016
Comparing the performance of circulating cathodic antigen and Kato-Katz techniques in evaluating Schistosoma mansoni infection in areas with low prevalence in …
C Okoyo, E Simiyu, SM Njenga, C Mwandawiro
BMC Public Health 18, 1-7, 2018
482018
Prevalence, intensity and associated risk factors of soil-transmitted helminth and schistosome infections in Kenya: impact assessment after five rounds of mass drug …
C Okoyo, SJ Campbell, K Williams, E Simiyu, C Owaga, C Mwandawiro
PLoS neglected tropical diseases 14 (10), e0008604, 2020
422020
Understanding heterogeneity in the impact of national neglected tropical disease control programmes: evidence from school-based deworming in Kenya
B Nikolay, CS Mwandawiro, JH Kihara, C Okoyo, J Cano, MT Mwanje, ...
PLoS neglected tropical diseases 9 (9), e0004108, 2015
412015
Current status of soil-transmitted helminths among school children in kakamega county, western kenya
T Ngonjo, C Okoyo, J Andove, E Simiyu, AE Lelo, E Kabiru, J Kihara, ...
Journal of parasitology research 2016, 2016
402016
Current status of Schistosoma mansoni and the factors associated with infection two years following mass drug administration programme among primary school …
J Masaku, N Madigu, C Okoyo, SM Njenga
BMC Public Health 15, 1-9, 2015
372015
Comparing insecticide-treated bed net use to Plasmodium falciparum infection among schoolchildren living near Lake Victoria, Kenya
C Okoyo, C Mwandawiro, J Kihara, E Simiyu, CW Gitonga, AM Noor, ...
Malaria journal 14, 1-6, 2015
352015
High prevalence of helminths infection and associated risk factors among adults living in a rural setting, central Kenya: a cross-sectional study
J Masaku, F Mutungi, PM Gichuki, C Okoyo, DW Njomo, SM Njenga
Tropical medicine and health 45, 1-9, 2017
342017
Assessment of lymphatic filariasis prior to re-starting mass drug administration campaigns in coastal Kenya
SM Njenga, HM Kanyi, FM Mutungi, C Okoyo, HS Matendechero, ...
Parasites & vectors 10, 1-9, 2017
302017
Evaluating effectiveness of screening house eaves as a potential intervention for reducing indoor vector densities and malaria prevalence in Nyabondo, western Kenya
PN Ng’ang’a, C Okoyo, C Mbogo, CM Mutero
Malaria journal 19, 1-12, 2020
242020
Model-based geostatistical methods enable efficient design and analysis of prevalence surveys for soil-transmitted helminth infection and other neglected tropical diseases
O Johnson, C Fronterre, B Amoah, A Montresor, E Giorgi, N Midzi, ...
Clinical Infectious Diseases 72 (Supplement_3), S172-S179, 2021
232021
Ascaris lumbricoides infection following school-based deworming in western Kenya: assessing the role of pupils' school and home water, sanitation, and hygiene exposures
JV Garn, CS Mwandawiro, B Nikolay, CD Drews-Botsch, JH Kihara, ...
The American journal of tropical medicine and hygiene 94 (5), 1045, 2016
192016
Soil-transmitted helminths and schistosomiasis among pre-school age children in a rural setting of Busia County, Western Kenya: a cross-sectional study of prevalence, and …
J Masaku, DW Njomo, A Njoka, C Okoyo, FM Mutungi, SM Njenga
BMC public health 20, 1-11, 2020
182020
Implementation challenges and opportunities for improved mass treatment uptake for lymphatic filariasis elimination: Perceptions and experiences of community drug distributors …
DW Njomo, BW Kimani, LW Kibe, C Okoyo, WP Omondi, HM Sultani
PLoS Neglected Tropical Diseases 14 (12), e0009012, 2020
162020
Evaluating the impact of larviciding with Bti and community education and mobilization as supplementary integrated vector management interventions for malaria …
CM Mutero, C Okoyo, M Girma, J Mwangangi, L Kibe, P Ng’ang’a, ...
Malaria Journal 19, 1-17, 2020
152020
Prevalence of intestinal parasitic infections and associated water, sanitation, and hygiene risk factors among school children in Mwea Irrigation Scheme, Kirinyaga County, Kenya
E Njambi, D Magu, J Masaku, C Okoyo, SM Njenga
Journal of tropical medicine 2020, 2020
132020
Assessment of malaria infection among pregnant women and children below five years of age attending rural health facilities of Kenya: A cross-sectional survey in two counties …
C Okoyo, E Githinji, RW Muia, J Masaku, J Mwai, L Nyandieka, S Munga, ...
Plos one 16 (9), e0257276, 2021
122021
Addressing barriers of community participation and access to mass drug administration for lymphatic filariasis elimination in Coastal Kenya using a participatory approach
DW Njomo, LW Kibe, BW Kimani, C Okoyo, WP Omondi, HM Sultani
PLoS neglected tropical diseases 14 (9), e0008499, 2020
112020
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