Dr. Erick Muok, KEMRI CGHR

Dr. Erick Muok

Ag. Deputy Director

Dr. Erick Muok is an experienced researcher and public health manager.

He has been a Principal and co-principal investigator and a manager in several projects in western Kenya providing technical support, logistic, administrative and financial management support in areas of health system strengthening, nutrition, parasite Immunology resistance, targeted NTDs like Schistosomiasis and other soil transmitted helminths.

In addition, he is a former Post-Doctoral Fellow at the Emory University, Emory Vaccine center, Atlanta GA providing technical advice, monitoring and evaluation and support to technical staff including ensuring that their objectives are set, work plans developed and implemented, and their performance is regularly reviewed.

He is a fully Trained Clinical Trial Monitor (CRA – Clinical Trial associate) and a management graduate from Kenya School of Government (KSG) on Strategic Leadership and Management.  Regional coordinator for Neglected Infectious Diseases (NID) node within the East African consortium for clinical trials (EACCR) network of excellence (eaccr.org).

Relevant Specialized/ Technical Training

Clinical research associate (CRA) training, under East African Consortium for Clinical Research (EACCR-2) regional capacity building Scheme – January 2019

Advanced Science on Vaccines and Vaccinology course, organized by the Sao Paulo School of Advanced Science on Vaccines – Nov/Dec 2018

 Strategic Leadership and Management, Kenya School of Government (KSG) – March to May 2018

Essential Grant Writing Skills Workshop, organized by African Research Excellence Fund (AREF) – May 2017

Vaccinology in Africa: A 5-day Master’s Level Course organized by the Jenner Institute – April 2017.

 Federation of Clinical Immunology Societies – Advanced Course in Basic & Clinical Immunology Travel award by IUIS, 2011.

Training on Principles of HIV research sponsored by NIH, 2011.

 Immunology of the tropics Training course. Organized by Makerere/UVRI Infection and Immunity Training Program, 2010.

 Designing and preparing effective scientific posters.  Organized by Training Center for Communications (TCC) and School of Biological Sciences – University of Nairobi. 2007

Effective Scientific communications and publishing.  Organized by Training (TCC) and School of Biological Sciences – University of Nairobi. 2007

Major Achievements

Analysis full genome sequencing data and Development of novel HIV Infectious Molecular Clone viruses derived from acutely infected Rwandan patient samples in the Hunter Lab, Emory Vaccine center

Successful Virology Technology Transfer to Rwanda-Zambia HIV Group (RZHRG) at Projet San Francisco (PSF) in Kigali, Rwanda including RNA Extraction, cDNA synthesis and Near Full Length Genome Amplification (NFLG) among others

Establishment of Immunology Lab facility within KEMRI/CGHR (2004-2008) including Flow cytometry assays alongside two other senior KEMRI Scientists with NIH grant “Determinants of resistance in Human schistosomiasis project

Selected Publications

First-author publications

  1. Muok EM, in’t Veld DH, Ogola GO, Karanja DM, Colebunders R, and Pauline MN Mwinzi. (May 2018) Schistosoma mansoni- Associated Immune Reconstitution Inflammatory Syndrome in HIV-Schistosomiasis Co-Infected Patients Undergoing Antiretroviral Treatment. Ann Clin Pathol 6(2): 1135.
  2. Erick M. O. Muok, Elses W. Simiyu, Elizabeth A. Ochola, Zipporah W. Ng’ang’a, W. Evan Secor, Diana M. S. Karanja, AND Pauline N. M. Mwinzi. Association Between CD4+ T-Lymphocyte Counts and Fecal Excretion of Schistosoma mansoni Eggs in Patients Coinfected with S. mansoni and Human Immunodeficiency Virus Before and After Initiation of Antiretroviral Therapy. Am J Trop Med Hyg 2013; 89(1): 42-45.
  3. Muok EMO, Onguru DO, Karanja DM, Mwinzi PNM, Nganga ZW and Ofula VA. Participation of Fishing Communities in Neglected Tropical Disease/HIV Co-infection Cohort Studies in Western Kenya. J Trop Dis 2013; 1: 104. doi:10.4172/ jtd.1000104.
  4. Erick M. O. Mouk*, Pauline N. M. Mwinzi , Carla L. Black , Jennifer M. Carter , Zipporah W. Ng’ang’a , Michael M. Gicheru , W. Evan Secor , Diana M. S. Karanja , and Daniel G. Colley (2009).  Childhood Coinfections with Plasmodium falciparum and Schistosoma mansoni Result in Lower Percentages of Activated T Cells and T Regulatory Memory Cells than Schistosomiasis Only.  Am J Trop Med Hyg 80 (3): 475-478. PMCID: PMC2821587
  5. Erick M.O Muok, PhD*; Vincent Were, PhD1 Charles O. Obonyo, PhD1 (In press). Efficacy of artesunate + sulfamethoxypyrazine/pyrimethamine versus praziquantel in the treatment of Schistosoma mansoni in Kenyan children

Other peer-reviewed publications

  1. Obonyo CO, Muok EMMO, Were V. Biannual praziquantel treatment for schistosomiasis. Cochrane Database of Systematic Reviews 2019, issue 8. CD013412.
  2. Goovaerts O, Mwinzi PNM, Muok EMO, Ceulemans A, Colebunders R, Kestens L (2018). Aberrant plasma MMP and TIMP dynamics in Schistosoma – Immune reconstitution inflammatory syndrome (IRIS). PLoS Negl Trop Dis 12(8): e0006710. https://doi.org/10.1371/journal.pntd.0006710
  3. Ondigo BN, Muok EMO, Oguso JK, Njenga SM, Kanyi HM, Ndombi EM, Priest JW, Kittur N, Secor WE, Karanja DMS and Colley DG (June 2018) Impact of Mothers’ Schistosomiasis Status During Gestation on Children’s IgG Antibody Responses to Routine Vaccines 2 Years Later and Anti-Schistosome and Anti-Malarial Responses by Neonates in Western Kenya. Front. Immunol. 9:1402. doi: 10.3389/fimmu.2018.01402
  4. Ogola GO, Ouma C, Jura WG, Muok EO, Colebunders R, Mwinzi PN. A non-synonymous polymorphism in IL-23R Gene (rs1884444) is associated with reduced risk to schistosomiasis-associated Immune Reconstitution Inflammatory Syndrome in a Kenyan population.  BMC Infect Dis. 2014 Jun 10; 14:316. doi: 10.1186/1471-2334-14-316.
  5. Sara E Butler, Erick M Muok, Susan P Montgomery, Keziah Odhiambo, Pauline M N Mwinzi, W Evan Secor and Diana M S Karanja. Mechanism of Anemia in Schistosoma mansoni-Infected School Children in Western Kenya (2012).  . Am J Trop Med Hyg Nov 7, 2012; 87(5): 862–867
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Eric Odhiambo Ochomo

Head of Entomology Division
Education

Education: BSc, MSc and PhD Biomedical Science and Technology, Medical Entomology and Vector Science major from Maseno University, Kenya. Research Fellow – American Society of Microbiology and Centers for Disease Control (ASM/CDC), Atlanta, GA, USA.Consultancies:Development of the Kenya Insecticide Resistance Management (IRM) Plan 2019-2024 to guide the implementation of insecticide resistance management by the Kenya National Malaria Control ProgramDevelopment of the Kenya Mosquito Surveillance Guidelines 2019-2024 to support the Kenya National Malaria Control Program.Consultant for the MENTOR Initiative on protocol development and entomological surveillance for the Evaluation of a novel household vector control kit against Aedes and Anopheles mosquitos in conflict prone areas project implemented in Wajir County, Kenya.

Selected Publications

  1. Lucas, E. R., K. A. Rockett, A. Lynd, J. Essandoh, N. Grisales, B. Kemei, H. Njoroge, C. Hubbart, E. J. Rippon, J. Morgan, A. E. Van’t Hof, E. O. Ochomo, D. P. Kwiatkowski, D. Weetman, and M. J. Donnelly. 2019. A high throughput multi-locus insecticide resistance marker panel for tracking resistance emergence and spread in Anopheles gambiae. Scientific Reports 9: 13335.
  2. Agumba S, Gimnig JE, Ogonda L, Ombok M, Kosgei J, Munga S, Guyah B, Omondi S, Ochomo E. Diagnostic dose determination and efficacy of chlorfenapyr and clothianidin insecticides against Anopheles malaria vector populations of western Kenya. Malar J. 2019 Jul 17;18(1):243. doi: 10.1186/s12936-019-2858-z. PMID: 31315614; PMCID: PMC6637467.
  3. Sedda L, Lucas ER, Djogbénou LS, Edi AVC, Egyir-Yawson A, Kabula BI, Midega J, Ochomo E, Weetman D, Donnelly MJ. Improved spatial ecological sampling using open data and standardization: an example from malaria mosquito surveillance. J R Soc Interface. 2019 Apr 26;16(153):20180941. doi: 10.1098/rsif.2018.0941. PubMed PMID: 30966952. 
  4. Gimnig JE, Ochomo ENew opportunities for malaria vector control. Lancet. 2018 Aug 18;392(10147):534-536. doi: 10.1016/S0140-6736(18)31817-8. Epub 2018 Aug 10. 
  5. Smit MR, Ochomo EO, Aljayyoussi G, Kwambai TK, Abong’o BO, Chen T, Bousema T, Slater HC, Waterhouse D, Bayoh NM, Gimnig JE, Samuels AM, Desai MR, Phillips-Howard PA, Kariuki SK, Wang D, Ward SA, Ter Kuile FO. Safety and mosquitocidal efficacy of high-dose ivermectin when co-administered with dihydroartemisinin-piperaquine in Kenyan adults with uncomplicated malaria (IVERMAL): a randomised, double-blind, placebo-controlled trial. Lancet Infect Dis. 2018 Jun;18(6):615-626. 
  6. Ochomo E, Chahilu M, Cook J, Kinyari T, Bayoh NM, West P, Kamau L, Osangale A, Ombok M, Njagi K, Mathenge E, Muthami L, Subramaniam K, Knox T, Mnavaza A, Donnelly MJ, Kleinschmidt I, Mbogo C. Insecticide-Treated Nets and Protection against Insecticide-Resistant Malaria Vectors in Western Kenya. Emerg Infect Dis. 2017 May;23(5):758-764. 
  7. Ochomo E, Subramaniam K, Kemei B, Rippon E, Bayoh NM, Kamau L, Atieli F, Vulule JM, Ouma C, Gimnig J, Donnelly MJ, Mbogo C. Presence of the knockdown resistance mutation, Vgsc-1014F in Anopheles gambiae and An. arabiensis in western Kenya. Parasit Vectors. 2015 Dec 1;8:616. 
  8. Bonizzoni M, Ochomo E, Dunn WA, Britton M, Afrane Y, Zhou G, Hartsel J, Lee MC, Xu J, Githeko A, Fass J, Yan G. RNA-seq analyses of changes in the Anopheles gambiae transcriptome associated with resistance to pyrethroids in Kenya: identification of candidate-resistance genes and candidate-resistance SNPs. Parasit Vectors. 2015 Sep 17;8:474. 
  9. Ochomo E, Bayoh NM, Kamau L, Atieli F, Vulule J, Ouma C, Ombok M, Njagi K, Soti D, Mathenge E, Muthami L, Kinyari T, Subramaniam K, Kleinschmidt I, Donnelly MJ, Mbogo C. Pyrethroid susceptibility of malaria vectors in four Districts of western Kenya. Parasit Vectors. 2014 Jul 4; 7:310. 
  10. Knox TB, Juma EO, Ochomo EO, Pates Jamet H, Ndungo L, Chege P, Bayoh NM, N’Guessan R, Christian RN, Hunt RH, Coetzee M. An online tool for mapping insecticide resistance in major Anopheles vectors of human malaria parasites and review of resistance status for the Afrotropical region. Parasit Vectors. 2014 Feb 21;7:76. doi: 10.1186/1756-3305-7-76. PubMed PMID: 24559061; PubMed Central PMCID: PMC3942210.
Dr. Stephen Munga

Dr. Stephen Munga

Research Officer

Dr. Stephen Munga is a highly experienced, researcher, technical advisor and public health manager. He has been a technical advisor to World Health Organization in Kenya, Botswana, Namibia and Uganda Malaria Program Reviews (MPRs).He has conducted desk review of Malaria Epidemic Preparedness and Response/Indoor Residual Spray program and Vector Control components of the National Malaria Control Programs and wrote two  manuscripts from the Kenya Malaria Review Program Final Report.

Dr. Munga is part of the team that reviewed guidelines used for Malaria Program Reviews used for Epidemic Preparedness and Response (EPR) other guidelines by WHO Inter-Country Support Team (WHO-IST, Harare) in Victoria Falls.Dr. Munga, participated in writing the National Malaria Strategy (2009 – 2017), Integrated Vector Management (IVM) Policy for Kenya and Technical Guidelines for Epidemic Preparedness and Response for Kenya.

He has been a technical advisor, for a Health System Strengthening Program in North Eastern Province, Kenya for two years and wrote Annual Reports to the funding organization (COMIC Relief), a, technical advisor to program on evaluation ZeroVector (durable wall lining) and Indoor Residual Spray in Liberia.Besides, has been a co-principal investigator and a manager in several projects in western Kenya and North Eastern regions providing technical support, logistic, administrative and financial support in areas of health system strengthening, insecticide resistance, evaluation of durable wall linings, and targeted malaria vector control climate variability and change and diseases.

In addition, Dr. Munga is a Post-Doctoral Fellow at the International Centre for Insect Physiology and Ecology (ICIPE) providing technical advice, monitoring and evaluation and support to technical staff including ensuring that their objectives are set, work plans developed and implemented, and their performance is regularly reviewed. In 2007, Dr. Munga worked with permission from his employer, as a Senior Guest Researcher at the Nile Basin Research Program, University of Bergen, Norway dealing with Climate Change and Human Health.

Training and Professional Qualifications
  1. Vector surveillance in the context of epidemic preparedness and response at Institute Pasteur, Dakar Senegal, October 2018, organized by World Health Organization (WHO)
  2. Science of Malaria Eradication – Swiss Tropical and Public Health Institute (Swiss TPH) – 2017, 
  3. Strategic Leadership Development Program – Kenya School of Government (KSG), 
  4. Leadership and Management in Global Health, University of Washington, March 2014
  5. Core Units (Leadership and Management, Supervisory Skills, Financial Management, Project and Program Management, Systems thinking, Conflict Management, Communication)
  6. Malaria Control in Humanitarian and Complex Emergencies
  7.  Geographical Information Systems (GIS) and Remote Sensing
  8. Statistical Packages: SAS, SPSS, JMP
  9.  Proposal and Publication writing and review course
Selected Publications
  1. Agumba S, Gimnig JE, Ogonda L, Ombok M, Kosgei J, Munga S, Guyah B, Omondi S and Ochomo E 2019. Diagnostic dose determination and efficacy of chlorfenapyr and clothianidin insecticides against Anopheles malaria vector populations of western Kenya. Malar J. 18:243.
  2. Khagayi S, Desai M, Amek N, Were V, Onyango ED, Odero C, Otieno K, Bigogo G, Munga S, Odhiambo F, Hamel MJ, Kariuki S, Samuels AM, Slutsker L, Gimnig JE and Vounatso P 2019. Modelling the relationship between malaria prevalence as a measure of transmission and mortality across age groups. Malar J.18:247.
  3. Omore R, Khagayi S, Ogwel B, Onkoba R, Ochieng JB, Juma J, Munga S, Tabu C, Kibet S, Nuorti JP, Odhiambo F, Mwenda JM, Breiman RF, Parashar UD, Tate JE 2019. Rates of hospitalization and death for all-cause and rotavirus acute gastroenteritis before rotavirus vaccine introduction in Kenya, 2010-2013. BMC Infect Dis. 19(1):47. doi: 10.1186/s12879-018-3615-6.
  4. Abong’o B, Yu X, Donnelly M, Geier M, Gibson G, Gimnig J, ter Kuile F, Lobo NF, Ochomo E, Ombok M, Samuels A, Munga S, Torr SJ, and M. Hawkes FM. Host Decoy Trap (HDT) with cattle odour is highly effective for collection of exophagic malaria vectors Parasit Vectors. 2018 Oct 15;11(1):533. doi: 10.1186/s13071-018-3099.
  5. Tamari N,  Minakawa N,  Sonye GO,  Awuor B,  Kongere J,  Munga S, Larson PS. Antimalarial bednet protection of children disappears when shared by three or more people in a high transmission setting of western Kenya. Parasitology, 1-9. doi:10.1017/S003118201800149X
  6. Munga S, Kimwetich Z, Atieli F, Vulule J, Kweka EJ. Knowledge and perceptions about indoor residual spray for malaria prevention in Mumbres division, Central Province of Kenya. Tanzani J. Health Research. Volume 19, Number 4, 2017.
Professional History

July – Aug 2019 Technical Advisor, WHO. Term of reference to support development and revision of Integrated Vector Management (IVM) guidelines and Insecticide Resistance Management Plan (IRMMP) for Namibia.

Jan – Feb 2019 Technical Advisor, WHO. Term of reference to support development and revision of Integrated Vector Management (IVM) guidelines for Uganda.

June – Dec 2018 Technical Advisor, ICF MEASURE Evaluation for National Malaria Program Review handling epidemic preparedness and response (EPR)

April – May 2018 WHO Technical Advisor to Namibia: Duties included providing assessing malaria epidemic preparedness and making recommendations for guiding future activities. Also provided technical support for malaria vector surveillance and insecticide resistance monitoring. 

May 2019 – date Sept 2014 – date Chief Research Officer & Deputy Director, KEMRI – Centre for Global Health and Research, KEMRI: Providing Technical, administrative and programmatic support and oversight of day to day management of the Centre and staff of >1500.

Sept 2014 – date Chief Research Officer & Centre Director, Centre for Global Health and Research, KEMRI: Providing Technical, administrative and programmatic support and oversight of day to day management of the Centre and staff of >1500.

Jul 2013 – Aug 2014 Acting Centre Director and Chief Research Officer, KEMRI – Centre for Global Health Research (CGHR)

Jan 2013 – date Preceptor (Site Coordinator), Mel and Enid Zuckerman, College of Public Health, University of Arizona.

Sept – Oct 2012 Acting Centre Director, Centre for Global Health and Research, KEMRI. Providing Technical and administrative oversight of day to day management of the Centre and staff of >1500.

Sept 09 – Jul 2013 Principal Research Officer, KEMRI, Centre for Global Health Research (CGHR).

Oct 2012 – date Editor with ISRN Tropical Medicine Journal and Asian Pacific Journal of Tropical Medicine (APJTM).

Feb & July 2011 Participated in development and review of Technical Guidelines for Epidemic Malaria Epidemic Preparedness and Response and Indoor Residual Spray for Kenya in collaboration with the Division of Malaria Control, Kenya (including IRS guidelines and handbook). 

July 2011 Technical Advisor to National Malaria Control Program (Liberia) and The MENTOR Initiative. Providing technical support for evaluation of indoor residual spray and durable wall lining program in Bomi County, Liberia. Conducted insecticide resistance tests, cone bioassays, mosquito larval and adult collections, prepared mosquitoes for ELISA and PCR analysis.

May 2011 WHO Technical Advisor for Malaria Program Review for Uganda. Evaluated the performance of malaria vector control program and malaria epidemic preparedness and response including indoor residual spray (IRS) for the National Malaria Control Program (NMCP), Uganda. 

Jan 2010 – Dec 2012 Technical Advisor and Program Technical Director for The MENTOR Initiative, Garissa. Providing technical advice for a Health System Improvement and Capacity Building for Malaria Outbreaks in Garissa, Wajir and Mandera in Northen Kenya. Program funded by COMIC RELIEF, UK.

Aug – Sept 2010 Acting Director, Centre for Global Health and Research, KEMRI. Providing Technical and administrative oversight of day to day management of the centre.

October 2009 Participated in review of WHO Technical Guidelines used for Malaria Program Reviews in Africa (including EPR guidelines) used in East and Southern African countries supported by WHO-Inter-Country Support Team (WHO-IST, Harare)

August 2009 Participated in the write up of the National Malaria Strategy (NMS) 2009 – 2017

August 2009 Participated in the write up of the Integrated Vector Management Policy for Kenya  

May 2010 Technical Advisor to Phase III, wrote 2 manuscripts from the Kenya Malaria Programme Review (Malaria in Pregnancy and Vector control and EPR).

August 2009 Technical Advisor, World Health Organization – phase II Botswana National Malaria Control Program Review. Evaluation of the performance of malaria vector control and epidemic preparedness and response (EPR)/IRS program in Botswana. 

May – June 2009 WHO Technical Advisor for Phase II Malaria Program Review (MPR). Evaluated the performance of malaria vector control program and epidemic preparedness and response (EPR) in Kenya. 

May – June 2009 Technical Advisor to National Malaria Control Program. Part of team that developed the Integrated Vector Management Policy for Kenya. 

Feb – March 2009 WHO Technical Advisor – Phase I Malaria Program Review (MPR). Reviewed and summarized literature and document trends in vector biology, capacity, structures, policies, guidelines for vector control, identify gaps and suggest solutions, strategies and activities for future strategic direction for malaria vector control and epidemic preparedness and response (EPR) in Kenya.

Sept 00 – July 2001 Junior Research Fellow with ICIPE/MOI University – ARPPIS project. Developing experimental protocols for the data collection on larval habitats and larval ecology and conducted longitudinal studies on mosquitoes ar

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Dr. Bryson Alberto Ndenga

Research Officer

Dr. Bryson A. Ndenga is a focused, goal-oriented, self-driven and hardworking scientist at KEMRI’s Center for Global Health Research in Kisumu as a Medical Entomologist. 

He diligently uses his skills as a scientist to provide practical solutions to identify, prevent and control diseases transmitted by arthropod vectors through research and capacity building.

Education

PhD, Environ. Biology/Medical Ento, Moi University, 2006

MPhil, Environ. Biology/Medical Ento, Moi University, 2001

BSc. NAT. Resource Management, Egerton University, 1995

Training and Professional Qualifications
  1. Vector surveillance in the context of epidemic preparedness and response at Institute Pasteur, Dakar Senegal, October 2018, organized by World Health Organization (WHO)
  2. Science of Malaria Eradication – Swiss Tropical and Public Health Institute (Swiss TPH) – 2017,
  3. Strategic Leadership Development Program – Kenya School of Government (KSG),
  4. Leadership and Management in Global Health, University of Washington, March 2014. Core Units (Leadership and Management, Supervisory Skills, Financial Management, Project and Program Management, Systems thinking, Conflict Management, Communication)
  5. Malaria Control in Humanitarian and Complex Emergencies
  6. Geographical Information Systems (GIS) and Remote Sensing
  7. Statistical Packages: SAS, SPSS, JMP
  8. Proposal and Publication writing and review course
Selected Publications
  1. Keating J, Macintyre K, Mbogo C, Githeko A, Regens JL, Swalm C, Ndenga B, Steinberg LJ, Kibe L, Githure JI, John Beier B (2003) A geographic sampling strategy for studying relationships between human activity and malaria vectors in urban Africa. American Journal of Tropical Medicine and Hygiene, 68(3) 357-365.
  2. Evan W, Shah SA, Mwinzi PMN, Ndenga BA, Watta CO, Karanja DMS (2003) Increased Density of Human Immunodeficiency Virus Type 1 Coreceptors CCR5 and CXCR4 on the Surfaces of CD4+ T Cells and Monocytes of Patients with Schistosoma mansoni Infection. Infection and Immunity 71(11): 6668–6671.
  3. Ndenga B, Githeko A, Omukunda E, Munyekenye G, Atieli H, Wamai P, Mbogo C, Minakawa N, Zhou G, Yan G (2006) Population dynamics of malaria vectors in western Kenya highlands. Journal of Medical Entomolology 43(2): 200-206.
  4. Githeko, AK, Ayisi JM, Odada PK, Atieli FK, Ndenga BA, Githure JI, Yan G (2006) Topography and malaria transmission heterogeneity in western Kenya highlands: prospects for focal vector control. Malaria Journal, 5:107.
  5. Fillinger U, Ndenga B, Githeko A, Lindsay SW. (2009) Integrated malaria vector control with microbial larvicides and insecticide-treated nets in western Kenya: a controlled trial. Bulletin of World Health Organization, 87:655–665. 
  6. Ndenga BA, Simbauni JA, Mbugi JP, Githeko AK, Fillinger U (2011) Productivity of Malaria Vectors from Different Habitat Types in the Western Kenya Highlands. PLOS ONE 6:4.
  7. Ndenga BA, Simbauni JA, Mbugi JP, Githeko AK (2012) Physical, Chemical and Biological Characteristics in Habitats of High and Low Presence of Anopheline Larvae in Western Kenya Highlands. PLOS ONE 7:10.
  8. Ndenga BA, Mulaya NL, Musaki SK, Shiroko JN, Dongus S, Fillinger U (2016) Malaria vectors and their bloodmeal sources in an area of high bed net ownership in the western Kenya highlands, Malaria Journal 15:76.
Dr. Maurice Odiere

Dr. Maurice R. Odiere

Research Officer

Dr. Odiere is a Principal Research Officer at KEMRI’s Centre for Global Health Research (CGHR) and Head of the center’s Neglected Tropical Diseases (NTD) Unit. His formal training is in Parasitology (PhD, 2010) with a background in leishmaniasis, malaria and helminth infections.

Dr. Odiere has a great interest in parasite biology & immunology, nutrition, epidemiology and control of NTDs, social science research and research ethics.

His focus for the last few years has been studies on human schistosomiasis and soil-transmitted helminths. Specifically, Dr. Odiere’s current research focuses on understanding the geographic distribution, prevalence, intensity and morbidities associated with schistosomiasis and intestinal worms and how people’s immune systems respond to these infections. He is also evaluating the Mass Drug Administration Control Strategies for Schistosomiasis and STHs, understanding persistent ‘hotspots’ for schistosomiasis, and evaluating performance of diagnostic tools with a view to developing more sensitive alternative tests to the Kato-Katz technique.

His research team has been involved in the development of a Multiplex Bead Assay (MBA) that provides a robust approach to the simultaneous analysis of antibody responses to multiple antigens using a single blood sample. In the public health context, this assay platform has the potential to generate an epidemiologic snapshot of community exposures to infections of interest. The team has also conducted studies on identification of strategies for strengthening Primary Health Care System in the control NTDs, and qualitative studies towards understanding of the socio-economic and cultural dynamics of schistosomiasis transmission.

Dr. Odiere is a Principal Research Officer at KEMRI’s Centre for Global Health Research (CGHR) and Head of the center’s Neglected Tropical Diseases (NTD) Unit. His formal training is in Parasitology (PhD, 2010) with a background in leishmaniasis, malaria and helminth infections.

Dr. Odiere has a great interest in parasite biology & immunology, nutrition, epidemiology and control of NTDs, social science research and research ethics.

His focus for the last few years has been studies on human schistosomiasis and soil-transmitted helminths. Specifically, Dr. Odiere’s current research focuses on understanding the geographic distribution, prevalence, intensity and morbidities associated with schistosomiasis and intestinal worms and how people’s immune systems respond to these infections. He is also evaluating the Mass Drug Administration Control Strategies for Schistosomiasis and STHs, understanding persistent ‘hotspots’ for schistosomiasis, and evaluating performance of diagnostic tools with a view to developing more sensitive alternative tests to the Kato-Katz technique.

His research team has been involved in the development of a Multiplex Bead Assay (MBA) that provides a robust approach to the simultaneous analysis of antibody responses to multiple antigens using a single blood sample. In the public health context, this assay platform has the potential to generate an epidemiologic snapshot of community exposures to infections of interest. The team has also conducted studies on identification of strategies for strengthening Primary Health Care System in the control NTDs, and qualitative studies towards understanding of the socio-economic and cultural dynamics of schistosomiasis transmission.

Publications

  1. Won K.Y., Kanyi H.M., Mwende F.M., Wiegand R.E., Goodhew, E.B., Priest J.W., Lee Y, Njenga S.M., Secor W.E., Lammie P.J. Odiere M.R. 2017. Multiplex Serologic Assessment of Schistosomiasis in Western Kenya: Antibody Responses in Preschool Aged Children as a Measure of Reduced Transmission. American Journal of Tropical Medicine and Hygiene 96(6), 1460-1467.
  1. Kepha S., Mwandawiro C.S., Anderson R.M., Pullan R.L., Nuwaha F., Cano J., Njenga S.M., Odiere M.R., Allen E., Brooker S.J., Nikolay B. 2017. Impact of single annual treatment and four-monthly treatment for hookworm and Ascaris lumbricoides, and factors associated with residual infection among Kenyan school children. Infectious Diseases of Poverty. 6(1):30.
  2. Scobie H.M., Patel M., Martin D., Mkocha H., Njenga S.M., Odiere M.R., Pelletreau S., Priest J.W., Thompson R., Won K.Y., Lammie P.J. 2017. Tetanus Immunity Gaps in Children 5-14 Years and Men ≥ 15 Years of Age Revealed by Integrated Disease Serosurveillance in Kenya, Tanzania, and Mozambique. American Journal of Tropical Medicine and Hygiene. 96(2):415-420.
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Dr. Pauline N. Mwinzi

Research Officer

Dr. Mwinzi is currently a Chief Research Officer in CGHR at the NTD Research Unit. She served previously as the PI for the KEMRI-CDC Cooperative Agreement one and a half years.

Dr. Mwinzi’s specialization is in Parasitology and Immunology. She obtained her PhD in 2005 from the Universiteit Utrecht (UU) in the Netherlands. Her current research interests are in understanding immune mechanisms related to development of resistance to schistosome infections, as well as in operational research for the control and elimination of Neglected Tropical Diseases (NTDs). She serves as a reviewer in the Scientific and Ethics Review Unit (SERU) at KEMRI and uses her experience in bioethics to train research teams in the ethical conduct of biomedical research.

Dr. Mwinzi is currently a Principal Investigator for the following four studies:

  1. An NIH RO1 funded study on The Role of 1gE in human schistosomiasis (RO1) (STC-Biologics)
  2. A Merck KGa funded study on Effect of Schistosoma mansoni infection on incidence of Plasmodium falciparum malaria among 1-5 year old children in western Kenya
  3. An EFINTD funded study on Control of Schistosomiasis in an Urban setting in western Kenya: Closing the gap through targeting street children (EFINTD.org)
  4. A B&MGF funded study (through UGA SCORE) on Comparison of school and community-based mass drug administration delivery strategies for control of Schistosoma mansoni infections in western Kenya in areas with >25% prevalence (SCORE SM2) (uga.edu/score)

She is also a co-investigator in several other studies. Dr. Mwinzi is part of the team that founded the Annual KEMRI NTD Conference, which is now in its 11th year. She is the immediate past Chair of the KEMRI Annual Scientific Health Conference (KASH) and Chair of the Management Board of the ARNTD (www.arntd.org). In addition, Dr. Mwinzi, jointly with her colleagues, also established the “American Society for Tropical Medicine & Hygiene (ASTMH) in Kenya” convened alongside KASH. Her other achievements include the high number of published papers and papers presented in local conferences as senior author.

Dr. Mwinzi has authored over 60 publications in peer review journals, provided technical support to the WHO/AFRO NTD programme and Mapping Project for Schistosomiasis and Soil-Transmitted helminths (STHs) and supported WHO NTD control activities in the African Region from time to time.

At the international level she serves on the Scientific Advisory Committees for Deworm 3, and the Schistosomiasis Control Initiative (SCI). Her contribution in academia includes teaching Bioethics at the Jaramogi Oginga Odinga University of Science and Technology (JOOUST) and Immunology of Parasitic Infections at the University of Maseno. 

Selected Publications
  1. Ho J, Odhiambo G, Meng’anyi LW, Musuva RM, Mule JM, Alaly ZS, Odiere MR, Mwinzi PN, Ganley-Leal L. Evaluation of medicine retail outlets for sale of typhoid fever vaccine among adults in two urban and rural settings in western Kenya: a proof-of-concept study. BMC Health Serv Res. 2016;16(1):527.
  2. Odhiambo GO, Musuva RM, Odiere MR, Mwinzi PN. Experiences and perspectives of community health workers from implementing treatment for schistosomiasis using the community directed intervention strategy in an informal settlement in Kisumu City, western Kenya. BMC Public Health. 2016;16:986. doi: 10.1186/s12889-016-3662-0.
  3. Ezeamama AE, He CL, Shen Y, Yin XP, Binder SC, Campbell CH Jr, Rathbun S, Whalen CC, N’Goran EK, Utzinger J, Olsen A, Magnussen P, Kinung’hi S, Fenwick A, Phillips A, Ferro J, Karanja DM, Mwinzi PN, Montgomery S, Secor WE, Hamidou A, Garba A, King CH, Colley DG. Gaining and sustaining schistosomiasis control: study protocol and baseline data prior to different treatment strategies in five African countries. BMC Infect Dis. 2016;16:229. doi: 10.1186/s12879-016-1575-2.
  4. Onkanga IO, Mwinzi PN, Muchiri G, Andiego K, Omedo M, Karanja DM, Wiegand RE, Secor WE, Montgomery SP. Impact of two rounds of praziquantel mass drug administration on Schistosoma mansoni infection prevalence and intensity: a comparison between community wide treatment and school based treatment in western Kenya. Int J Parasitol. 2016;46(7):439-45. doi: 10.1016/j.ijpara.2016.01.006.
  5. Ng’etich AI, Rawago FO, Jura WG, Mwinzi PN, Won KY, Odiere MR. A cross-sectional study on schistosomiasis and soil-transmitted helminths in Mbita district, western Kenya using different copromicroscopic techniques. Parasite Vectors. 2016;9:87. doi: 10.1186/s13071-016-1368-x.
  6. Mwinzi PN, Muchiri G, Wiegand RE, Omedo M, Abudho B, Karanja DM, Montgomery SP, Secor WE. Predictive Value of School-Aged Children’s Schistosomiasis Prevalence and Egg Intensity for Other Age Groups in Western Kenya. Am J Trop Med Hyg. 2015;93(6):1311-7. doi: 10.4269/ajtmh.15-0467.
  7. Kepha S, Nuwaha F, Nikolay B, Gichuki P, Mwandawiro CS, Mwinzi PN, Odiere MR, Edwards T, Allen E, Brooker SJ. Effect of Repeated Anthelminthic Treatment on Malaria in School Children in Kenya: A Randomized, Open-Label, Equivalence Trial. J Infect Dis. 2016;213(2):266-75. doi: 10.1093/infdis/jiv382.
  8. Lai YS, Biedermann P, Ekpo UF, Garba A, Mathieu E, Midzi N, Mwinzi P, N’Goran EK, Raso G, Assaré RK, Sacko M, Schur N, Talla I, Tchuenté LA, Touré S, Winkler MS, Utzinger J, Vounatsou P. Spatial distribution of schistosomiasis and treatment needs in sub-Saharan Africa: a systematic review and geostatistical analysis. Lancet Infect Dis. 2015;15(8):927-40. doi: 10.1016/S1473-3099(15)00066-3. Erratum in: Lancet Infect Dis. 2015;15(7):761.
  9. Corstjens PL, Nyakundi RK, de Dood CJ, Kariuki TM, Ochola EA, Karanja DM, Mwinzi PN, van Dam GJ. Improved sensitivity of the urine CAA lateral-flow assay for diagnosing active Schistosoma infections by using larger sample volumes. Parasit Vectors. 2015;8:241. doi: 10.1186/s13071-015-0857-7.
Dr Prisca Oria

Dr Prisca Oria

Senior Research Officer

Prisca holds Bachelor of Arts (Anthropology) and Master of Arts (Communication Studies) degrees from the University of Nairobi, and a PhD (Sociology) from Wageningen University, the Netherlands.

Since 2007, she has provided social science technical expertise to public health research projects including diarrhoeal disease management in children, seasonal and pandemic influenza vaccination among the general population and health care workers, and lately, malaria vector control.

Current Position: Social Scientist on the study “Understanding behavioural, market and practical factors affecting potential of household spatial repellents use for malaria control in western Kenya

Selected Publications
  1. Options for sustaining solar-powered mosquito trapping systems on Rusinga Island, western Kenya: a social dilemma analysis. Prisca A Oria, Michiel Wijnands, Jane Alaii, and Cees Leeuwis. BMC Public Health. 2018.
  2. Stepped wedge cluster-randomised trial of the impact of mass mosquito trapping on malaria (SolarMal). Tobias Homan, Alexandra Hiscox, Collins K Mweresa, Daniel Masiga, Wolfgang R Mukabana, Prisca A Oria, Nicolas Maire, Aurelio Di Pasquale, Mariabeth Silkey, Jane Alaii, Teun Bousema, Cees Leeuwis, Thomas A Smith, and Willem Takken. The Lancet. 2016.
  3. Mass mosquito trapping for malaria control in western Kenya: study protocol for a stepped wedge cluster-randomised trial. Alexandra Hiscox, Tobias Homan, Collins K Mweresa, Nicolas Maire, Aurelio Di Pasquale, Daniel Masiga, Prisca A Oria, Jane Alaii, Cees Leeuwis, Wolfgang R Mukabana, Willem Takken, Thomas A Smith. Trials. 2016.
  4. Combining malaria control with house electrification: adherence to recommended behaviours for proper deployment of solar-powered mosquito trapping systems, Rusinga Island, western Kenya. Prisca A Oria, Jane Alaii, Margaret Ayugi, Willem Takken, and Cees Leeuwis. Tropical Medicine and International Health. 2015.
  5. Tracking the mutual shaping of the technical and social dimensions of solar-powered mosquito trapping systems (SMoTS) for malaria control on Rusinga Island, western Kenya. Prisca A Oria, Jane Alaii, Margaret Ayugi, Wolfgang R Mukabana, Willem Takken, Cees Leeuwis. Parasites and Vectors. 2014.
  6. Assessing Parents’ Knowledge and Attitudes towards Seasonal Influenza Vaccination of Children Prior to and following a Seasonal Influenza Vaccination Effectiveness Study in Urban and Rural Kenya, 2010-2011. Prisca A Oria, Geoffrey Arunga, Emmaculate Lebo, Joshua W Wong, Gideon Emukule, Nancy Otieno, Philip Muthoka, David Mutonga, Robert F Breiman, Mark A Katz. BMC Public Health. 2013.
  7. Examining the Use of Oral Rehydration Salts and Other Oral Rehydration Therapy for Childhood Diarrhea in Kenya. Lauren S Blum, Prisca A Oria, Christine K Olson, Robert F Breiman, and Pavani K Ram. American Journal of Tropical Medicine & Hygiene. 2011.
  8. Community Case Management of Childhood Diarrhea in a Setting with declining use of Oral Rehydration Therapy: Findings from Cross-sectional Studies among Primary Household Caregivers, Kenya, 2007. Christine K Olson, Lauren S Blum, Kinnery N Patel, Prisca A Oria, Daniel R Feikin, Kayla F Laserson, Annah W Wamae, Alfred V Bartlett, Robert F Breiman, and Pavani K Ram. American Journal of Tropical Medicine & Hygiene. 2011.
  9.  Are Kenyan Healthcare Workers Willing to Receive the Pandemic Influenza Vaccine? Results from a Cross-sectional Survey of Healthcare Workers in Kenya about Knowledge, Attitudes and Practices about Infection with and Vaccination against 2009 Pandemic Influenza A (H1N1), 2010. Prisca A Oria, Wycliffe Matini, et al. Vaccine. 2011.
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Rosemary M. Musuva

Research Officer

Rosemary Musuva is a Research Officer in CGHR. She has a formal training in Public Health and social science research.

Ms. Musuva is currently a Principal Investigator for a B&MGF funded study (through UGA SCORE) on the Impact of Mass Drug Administration for Control of Schistosoma mansoni infections in Kisumu, Siaya and Homa Bay Counties. Understanding factors associated with sustained high prevalence in some areas despite repeated high treatment coverage.

Publications
  1. Musuva RM, Matey E, Masaku JM, Odhiambo GO, Mwende F, Thuita I, Kihara J, Njomo DW. Lessons from implementing mass drug administration for soil transmitted helminths among pre-school aged children during school-based deworming program at the Kenyan coast. BMC Public Health (In Press)
  2. Masaku J, Mwende F, Odhiambo G, Musuva R, Matey E, Kihara JH, Thuita IG, Njomo DW. Knowledge, practices and perceptions of geo-helminthes infection among parents of pre-school age children of coastal region, Kenya. PLoS Negl Trop Dis. 2017;11(3):e0005514. doi: 10.1371/journal.pntd.0005514.
  3. Ho J, Odhiambo G, Meng’anyi LW, Musuva RM, Mule JM, Alaly ZS, Odiere MR, Mwinzi PN, Ganley-Leal L. Evaluation of medicine retail outlets for sale of typhoid fever vaccine among adults in two urban and rural settings in western Kenya: a proof-of-concept study. BMC Health Serv Res. 2016;16(1):527.
  4. Odhiambo GO, Musuva RM, Odiere MR, Mwinzi PN. Experiences and perspectives of community health workers from implementing treatment for schistosomiasis using the community directed intervention strategy in an informal settlement in Kisumu City, western Kenya. BMC Public Health. 2016;16:986. doi: 10.1186/s12889-016-3662-0.
  5. Omedo M, Ogutu M, Awiti A, Musuva R, Muchiri G, Montgomery SP, Secor WE, Mwinzi P. The effect of a health communication campaign on compliance with mass drug administration for schistosomiasis control in western Kenya–the SCORE project. Am J Trop Med Hyg. 2014;91(5):982-8. doi: 10.4269/ajtmh.14-0136.
  6. Odhiambo GO, Musuva RM, Atuncha VO, Mutete ET, Odiere MR, Onyango RO, Alaii JA, Mwinzi PN. Low levels of awareness despite high prevalence of schistosomiasis among communities in Nyalenda informal settlement, Kisumu city, western Kenya. PLoS Negl Trop Dis. 2014;8(4):e2784. doi: 10.1371/journal.pntd.0002784.
  7. Musuva RM, Awiti A, Omedo M, Ogutu M, Secor WE, Montgomery SP, Alaii J, Mwinzi PN. Community knowledge, attitudes and practices on schistosomiasis in western Kenya–the SCORE Project. Am J Trop Med Hyg. 2014;90(4):646-52. doi: 10.4269/ajtmh.13-0488.
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Jackline Jeruto Kosgei

Senior Research Officer

Jackline holds is a PhD candidate of Maseno University, holds a Master of Science in Medical Entomology and vector science major and a BSc in Biomedical Science and Technology from Maseno University.

Jackline is a distinguished scholar with experience in malaria vector research and possess expert skills in field collection and laboratory analysis of mosquitoes. Since 2012, She has successfully supervised the development of policies and overseen the establishment, design, and delivery of project initiatives. She represents KEMRI CGHR at the National Malaria control Program (NMCP) and a member of the vector control steering committee.

Current Position: Research Officer in charge of coordination of the Attractive Sugar Bait Study and the lead person of other entomology studies within KEMRI CGHR

Selected Publications
  1. Agumba S, Gimnig JE, Ogonda L, Ombok M, Kosgei J, Munga S, Guyah B, Omondi S, Ochomo E. Diagnostic dose determination and efficacy of chlorfenapyr and clothianidin insecticides against Anopheles malaria vector populations of western Kenya. Malar J. 2019 Jul 17;18(1):243. doi: 10.1186/s12936-019-2858-z. PMID: 31315614; PMCID: PMC6637467.
  2. Maxwell G. Machani, Eric Ochomo, Jackline Kosgei, Fred Amimo, Stephen Munga, Andrew K. Githeko, Guiyun Yan, and Yaw A. Afrane; Resting behaviour of malaria vectors in a highland and lowland area of western Kenya: Implication on malaria vector control measures (In press)
  3. Bayoh, Nabie, Kosgei Jackline, Walker, Edward, Ombok, Maurice, Olang, George, Githeko, Andrew, Killeen, Gerry, Otieno, Peter, Kariuki, Simon, Desai, Meghna, Lobo, Neil, Vulule, John, Hamel Mary and Gimnig, John: Persistently high estimates of late night, indoor exposure to malaria vectors despite high coverage of insecticide treated nets. Parasites & Vectors, 2014; 7:380.
  4. John E. Gimnig, Edward D. Walker, Peter Otieno, Jackline Kosgei, George Olang, Maurice Ombok, John Williamson, Doris Marwanga, Daisy Abong’o, Meghna Desai, Simon Kariuki, Mary J. Hamel,Neil F. Lobo, John Vulule, and M. Nabie Bayoh, 2013; Incidence of Malaria among Mosquito Collectors Conducting Human Landing Catches in Western Kenya. Am. J. Trop. Med. Hyg., 2013; 88(2): 301-8
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Bernard Onyango Abong’o

Research Scientist
Education

BSc and MSc Biomedical Science and Technology, Medical Entomology and Vector Science major from Maseno University, Kenya.
PhD in Vector Biology from Liverpool School of Tropical Medicine (LSTM), Liverpool, UK

Achievements
  1. Development and implementation of low-cost community-based entomology surveillance for longitudinal monitoring of mosquito populations
  2. Evaluation of a novel outdoor mosquito trapping technique
  3. Evaluation of entomological impact of IRS with Actellic 300CS for malaria transmission reduction
Selected Publications
  1. Odero NA, Samuels AM, Odongo W, Abong’o B, Gimnig J, Otieno K, et al. Community-based intermittent mass testing and treatment for malaria in an area of high transmission intensity, western Kenya: development of study site infrastructure and lessons learned. Malaria journal. 2019;18(1) 
  2. Smit MR, Ochomo EO, Aljayyoussi G, Kwambai TK, Abong’o BO, Bousema T, Waterhouse D, Bayoh NM, Gimnig JE, Samuels AM, Desai MR, Phillips-Howard PA, Kariuki SK, Wang D, Ward SA, Ter Kuile FO. Human Direct Skin Feeding Versus Membrane Feeding to Assess the Mosquitocidal Efficacy of High-Dose Ivermectin (IVERMAL Trial). Clin Infect Dis. 2019 Sep 13;69(7):1112-1119. doi: 10.1093/cid/ciy1063. PubMed PMID: 30590537; PubMed Central PMCID: PMC6743833.
  3. Abong’o B, Yu X, Donnelly MJ, Geier M, Gibson G, Gimnig J, et al. Host Decoy Trap (HDT) with cattle odour is highly effective for collection of exophagic malaria vectors. Parasites & vectors. 2018;11(1).
  4. Smit MR, Ochomo EO, Aljayyoussi G, Kwambai TK, Abong’o BO, Chen T, et al. Safety and mosquitocidal efficacy of high-dose ivermectin when co-administered with dihydroartemisinin-piperaquine in Kenyan adults with uncomplicated malaria (IVERMAL): a randomised, double-blind, placebo-controlled trial. The Lancet Infectious Diseases. 2018.
  5. Ochomo EO, Bayoh NM, Walker ED, Abongo BO, Ombok MO, Ouma C, et al. The efficacy of long-lasting nets with declining physical integrity may be compromised in areas with high levels of pyrethroid resistance. Malaria journal. 2013;12:368.
  6. Samuels AM, Awino N, Odongo W, Abong’o B, Gimnig J, Otieno K, et al. Community-based intermittent mass testing and treatment for malaria in an area of high transmission intensity, western Kenya: study design and methodology for a cluster randomized controlled trial. Malaria journal. 2017;16(1):240.
  7. Smit MR, Ochomo EO, Aljayyoussi G, Kwambai TK, Abong’o BO, Bousema T, et al. Human Direct Skin Feeding versus Membrane Feeding to Assess the Mosquitocidal Efficacy of High-Dose Ivermectin (IVERMAL Trial). Clin Infect Dis. 2018.
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Elizabeth A.Ochola

Lab. Technologist

Elizabeth A. Ochola is a Laboratory Technologist. She is currently pursuing PhD studies in Health Geography at the University of Waterloo, Canada. Ms. Ochola has a Master of Science degree in Medical Parasitology from Maseno University and a BSc. in Biology (Biomedical Sciences) from the University of Eastern Africa- Baraton. Ms. Ochola’s PhD research is on the impact of structural inequalities on Neglected Tropical Diseases (NTDs), and how this affects health and well-being in sub-Saharan Africa. This research is part of an extensive study named the Global Index of Well-being (GLOWING), which aims to develop indicators that measure well-being in low to middle-income countries (LMICs) to enable policy makers  make evidence-based decisions that improve the wellbeing of a country’s citizens.

Publications
  1. Meurs L, Brienen E, Mbow M, Ochola EA, Mboup S, Karanja DM, Secor WE, Polman K, van Lieshout L. Is PCR the Next Reference Standard for the Diagnosis of Schistosoma in Stool? A Comparison with Microscopy in Senegal and Kenya. PLoS Negl Trop Dis. 2015;9(7):e0003959. doi: 10.1371/journal.pntd.0003959.
  2. Corstjens PL, Nyakundi RK, de Dood CJ, Kariuki TM, Ochola EA, Karanja DM, Mwinzi PN, van Dam GJ. Improved sensitivity of the urine CAA lateral-flow assay for diagnosing active Schistosoma infections by using larger sample volumes. Parasit Vectors. 2015;8:241. doi: 10.1186/s13071-015-0857-7.
  3. Worrell CM, Bartoces M, Karanja DM, Ochola EA, Matete DO, Mwinzi PN, Montgomery SP, Secor WE. Cost analysis of tests for the detection of Schistosoma mansoni infection in children in western Kenya. Am J Trop Med Hyg. 2015;92(6):1233-9. doi: 10.4269/ajtmh.14-0644.
  4. Foo KT, Blackstock AJ, Ochola EA, Matete DO, Mwinzi PN, Montgomery SP, Karanja DM, Secor WE. Evaluation of point-of-contact circulating cathodic antigen assays for the detection of Schistosoma mansoni infection in low-, moderate-, and high-prevalence schools in western Kenya. Am J Trop Med Hyg. 2015;92(6):1227-32. doi: 10.4269/ajtmh.14-0643.
  5. Mwinzi PN, Kittur N, Ochola E, Cooper PJ, Campbell CH Jr, King CH, Colley DG. Additional Evaluation of the Point-of-Contact Circulating Cathodic Antigen Assay for Schistosoma mansoni Infection. Front Public Health. 2015;3:48. doi: 10.3389/fpubh.2015.00048.
  6. Davis SM, Wiegand RE, Mulama F, Kareko EI, Harris R, Ochola E, Samuels AM, Rawago F, Mwinzi PM, Fox LM, Odiere MR, Won KY. Morbidity associated with schistosomiasis before and after treatment in young children in Rusinga Island, western Kenya. Am J Trop Med Hyg. 2015;92(5):952-8. doi: 10.4269/ajtmh.14-0346.
  7. Won KY, Abudho B, Blackstock AJ, Montgomery SP, Kennedy ED, Person B, Mwinzi PN, Ochola EA, Foo KT, Hightower AW, Karanja DM, Secor WE. Assessment of quality of life as a tool for measuring morbidity due to Schistosoma mansoni infection and the impact of treatment. Am J Trop Med Hyg. 2014;90(2):322-8. doi: 10.4269/ajtmh.13-0361.
  8. Muok EM, Simiyu EW, Ochola EA, Ng’ang’a ZW, Secor WE, Karanja DM, Mwinzi PN. Association between CD4+ T-lymphocyte counts and fecal excretion of Schistosoma mansoni eggs in patients coinfected with S. mansoni and human immunodeficiency virus before and after initiation of antiretroviral therapy. Am J Trop Med Hyg. 2013;89(1):42-5. doi: 10.4269/ajtmh.13-0045.