simon-ndiritu

Title/Qualifications: Dr./PhD in Medical Mycology, MSc in Infectious Diseases (Medical Mycology) and BSc. in Medical Laboratory Science.
Department/Unit/Section: Medical Laboratory Sciences
Contact Address: P.O Box 43844- 00100, Nairobi, Kenya
Position: Lecturer & Chairman
Area of Specialization: Medical Microbiology: Medical Mycology.
Research Interests: Medical Bacteriology and Mycology; areas in pathogens identification, antimicrobial susceptibility profiles.

Google Scholar: https://scholar.google.com/citations?user=jTV4ZD8AAAAJ&hl=en

ORCID ID: https://orcid.org/0000-0002-6591-0094


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Publications

Refereed Journals

  • Njue, L. A. M., Muturi, M., Waithaka, S. K., Menza, N., & Nyamai, M. (2024). Quality of selected immunological and immunohematological tests in clinical laboratories in Kiambu County, Kenya. East African Medical Journal, 101(1), 6648-6658.

  • Lilian G. Njue, Iddah M. Ali, Nelson C. Menza (2024). Diagnostic Performance of Saliva Samples in Asymtomatic COVID-19 Infected Patients in Kakamega Kenya. EAS J Parasitol Infect Dis; Vol-6, Iss-1:1-7.
  • Ongong’a RO, Menza N, Demba RN. (2024). Assessment of electrolyte imbalance among benign prostate hyperplasia patients in Western Kenya.Int J Res Med Sci 2024; 12:37-43.

  • Kipsang, F. , Musyoki, A. and Menza, N. (2023) Risk Factors Associated with MDR and CR Acinetobacter baumannii Carriage among ICU Patients Hospitalized at MOI Teaching and Referral Hospital, Kenya. Open Journal of Medical Microbiology, 13, 263-275. doi: 10.4236/ojmm.2023.134021.

  • Kipsang, F., Munyiva, J., Menza, N. and Musyoki, A. (2023) Carbapenem-resistant Acinetobacter baumannii infections: Antimicrobial resistance patterns and risk factors for acquisition in a Kenyan intensive care unit. IJID Regions 9 (2023) 111–116.

  • Syengo, S. M., Mutai, B. K., Menza, N. C., Mathenge, S. G. (2023). Lipid Profiles, Cardiovascular Disease Risk and Dyslipidemia in HIV Positive Patients on HAART at Machakos Level Five Hospital, Machakos County. J Chem Edu Res Prac, 7(2), 477-497.
  • Kamau WW, Sang R, Rotich G, Agha SB, Menza N, Torto B and Tchouassi DP (2023) Patterns of Aedes aegypti abundance, survival, human-blood feeding and relationship with dengue risk, Kenya. Front. Trop. Dis. 4:1113531. doi: 10.3389/fitd.2023.1113531.
  • Godani, S., Chengo, M. and Muturi, M. (2023) Zoonotic Pathogens Detected in Ticks in Kenyan Game Reserves. Advances in Entomology, 11, 1-9. doi: 10.4236/ae.2023.111001.
  • Joseph GM, Maina MJK,David MN, Nelson MC. Toxicity of Toddalia asiatica isassociated with microcephaly and hypochondroplasia in mice. J Phytopharmacol2022; 11(6):386-390. doi: 10.31254/phyto.2022.11602.

  • John K. Njenga a*, Scholastica G. Mathenge, Nelson C. Menza and Jessie N. Githanga. (2022) Hematological Profiles of Eligible Blood Donors at Kenyatta National Hospital, Kenya, International Blood Research & Reviews, 13(2): 24-31, Article no.IBRR.84365, ISSN: 2321–7219

  • Ambala, P., Fatima, H., Samson, M., Gachara, G., Nelson, M., Lindsey, M. S., Megan, V., Susan, M., Marc, V., Dawn, Z., and Joseph, K. (2022) Absence of molecular evidence of filovirus circulating in bats and rodents in Laikipia North sub-County, Kenya: a cross sectional study, Pan African Medical Journal-One Health. 7:34.

  • Nganga M. W, Musyoki A. M., Menza N. C., Bundi S., Kiarie J. and Mbugua M. (2022) Piloting of locally developed dried tube specimen panels for Xpert®MTB/RIF assay proficiency testing in Nairobi, Kenya. East African Medical Journal Vol. 99 No. 1. eISSN: 0012-835X.

  • Kamau WW, Sang R, Ogola EO, Rotich G, Getugi C, Agha SB, Menza N…..Tchouassi DP. 2022 Survival rate, blood feeding habits and sibling species composition of Aedes simpsoni complex: Implications for arbovirus transmission risk in East Africa. PLoS Negl Trop Dis 16(1): e0010171. ISSN: 1935-2727.

  • Njenga, J. K., G. Mathenge, S., C. Menza, N., & Githanga, J. N. 2022 Prevalence of Iron Deficiency and Anemia among Eligible Blood Donors at Kenyatta National Hospital, Kenya. International Journal of Research and Reports in Hematology, 5(1), 40-46. ISSN: 0925-5710

  • Bilan Sheikh Ali Nor, Nelson Chengo Menza and Abednego Moki Musyoki 2021 Multidrug-Resistant Shigellosis among Children Aged below Five Years with Diarrhea at Banadir Hospital in Mogadishu, Somalia. Can J Infect Dis Med Microbiol. 2021: 6630272. ISSN: 1712-9532 (print) 1918-1493 (web).

  • Mwambia TM* , Nelson M and Scholastica M 2021 Risk Factors for Maternal Genitourinary Colonization with Group B Streptococcus at Pregnancy. International Journal of Women's Health care and Gynecology, 3:1 ISSN: 2694-4081

  • Evans Mwasiaji , Paul K. Sang , Menza N. Chengo 2021 Human Resource Management Challenges and Research Proposition in ISO 9001:2015 Certified Firms in Kenya Post Covid-19 Disease Outbreak International Journal of Business & Management Studies, 2:4. ISSN 2694-1430 (Print), 2694-1449 (Online)

  • Musavini GK, Muturi M & Menza N 2020 Prevalence and Knowledge of Hepatitis B and Hepatitis C Infections among Voluntary Blood Donors in Nairobi, Kenya. Journal of Infectious Diseases Research, 3(1): 66-77. ISSN: 2688-6537
  • Mwambia TM* , Nelson M and Scholastica M 2021 Risk Factors for Maternal Genitourinary Colonization with Group B Streptococcus at Pregnancy. International Journal of Women's Health care and Gynecology, 3:1 ISSN: 2694-4081
  • V Munyao, J Karisa, CM Munyao, M Ngari, N Menza, Norbert Peshu, Martin Rono, Charles Mbogo, Joseph Mwangangi 2020 Surveillance of Culicine Mosquitoes in Six Villages of Taita-Taveta County, Kenya, With Host Determinations From Blood-Fed Females Journal of Medical Entomology Online ISSN: 1938-2928
  • Musavini GK, Muturi M & Menza N 2020 Prevalence and Knowledge of Hepatitis B and Hepatitis C Infections among Voluntary Blood Donors in Nairobi, Kenya. Journal of Infectious Diseases Research, 3(1): 66-77. ISSN: 2688-6537
  • Karanja N. Esther1, Menza C. Nelson2 , Kabiru W. Ephantus3 2019 Bacterial Agents Causing Food Poisoning Among Patients Attending Thika Level 5 Hospital, Kiambu County, Kenya." Open Journal of Medical Microbiology. Paper accepted. ID 2260358 ISSN  2165-3380

  • Jackline Gakii,  Nelson Menza,  Winfreda Nyamota Maoga,2019 Knowledge, attitude and perception of HIV, ART and PMTCT among HIV infected pregnant women in Narok Sub-county hospitals.Global Journal of Health Sciences, Vol 4, Issue 1, No.4, pp 44 – 54.ISSN 2519-0210
  • Caroline J. Ngetsa 1, Marc W. Heymann2, Alex Thiong'o1, Elizabeth Wahome1, John Mwambi 1, Clara Karani1, Nelson C. Menza3, Grace Mwashigadi1, Margaret W.Muturi3, Susan M. Graham, PeterMugo1, Eduard Sanders 2019 Rectal gonorrhoea and chlamydia among Men who have sex with Men in coastal Kenya Wellcome Open Research, 4:79 ISSN 2398-502X

  • Menza*, C.Nelson, Muturi W. Margaret 2018 Occurrence of Aflatoxigenic Aspergillus Species in Peanut Varieties in Busia and Kisii Central Districts, Kenya Open Journal of Medical Microbiology 08(04):98-108 ISSN
    2165-3380

  • Nelson C. Menza*, Muturi W. Margaret, Kamau M. Lucy 2016 Oil Contents and Aflatoxin Levels in Peanuts Varieties Produced in Busia and Kisii Central Districts, Kenya Tropical Medicine & Surgery, 4: 204. ISSN:2329-9088
  • Nelson C. Menza*, Muturi W. Margaret, Kamau M. Lucy 2015 Incidence, Types and Levels of Aflatoxin in Different Peanuts Varieties Produced in Busia and Kisii Central Districts, Kenya Open Journal of Medical Microbiology, 2015, 5, 209-221. ISSN 2165-3380
  • Menza Nelson, Wanyoike, W and Muturi, W.2013 Identification and Susceptibility Profile of Vaginal Candida Species to Antifungal Agents among Pregnant Women Attending the Antenatal Clinic of Thika District Hospital, Kenya. Open Journal of Medical Microbiology, 2013, 3, 239-247 ISSN 2165-3380
  • Menza Nelson, Wanyoike, W and Muturi, W.2013 Prevalence of Vaginal Candidiasis and Determination of the Occurrence of Candida Species in Pregnant Women Attending the Antenatal Clinic of Thika District Hospital, Kenya. Open Journal of Medical Microbiology, 2013, 3, 264-272 ISSN 2165 - 3380

Consultancy and Community Service

S/No.

Consultant (s)

Consulting

Person/ Body/ Organization

Year

Title Consultancy Service

Payment

(US$)

1.

Marereni Secondary School

BOM member

2019 to date

Member

-

2.

Marafa Boys Secondary School

BOM member

2019 to date

Member

-

3.

External Reviewer

Kabarak University

2020 to date

Grants funding proposals

50 USD

4.

Board of Management (BOM)

East Park Academy, ska, Machakos County

May, 2019

to Dec. 2020

Chairman

-

Affiliation to Professional Bodies

  • Registered and to date licensed Member, Kenya Medical Laboratory Technologist and Technicians Board (KMLTTB.

Research funding

  • Muturi W. Margaret, Gachara, George, Musyoki, Abednego, Menza Nelson, Ndungu Harison and Ontwenka Lameck 2021 Synbio project on development of silico for identifying Vibrio cholerae mRNA aptamer libraries for diagnosis of KShs.3, 000, 000. Multidisplinary Research Grant of KShs. 12,356,250 (Grant Number NRF/2/MMC/625).
  • Ambala Peris Auma Ayany (PhD student), Gachara George, Menza Nelson and Michael Kamau 2020 The National Research Fund (NRF) PhD Research grant ‘Determination of Molecular Characteristics of Filoviruses Circulating in Turkana and Laikipia Counties in Kenya’ of Ksh. 899,298.00 (Grant number NRF/PhD/02/68).

Administrative Positions Held

  • From 19th September, 2020 to date, Chairman, Department of Medical Laboratory Sciences.
  • From 15th March to 15th June, 2019, seconded to Kenyatta University Hospital as the Chief Medical Laboratory Technologist.
  • From 18th November, 2019 to 16th December, 2019, Acting Chairman, Medical Laboratory Science department.
  • From 23rd April, 2019 to 14th June, 2019, Acting Chairman, Medical Laboratory Science department.
  • From March 2016 to September 2020, Chairman, MLS Departmental Board of Postgraduate Studies.
  • Member, Kenyatta University Senate Curriculum Rationalization Committee in the years 2016-2018.
  • From January, 2014 to December, 2016: Website Coordinator, Department of Medical Laboratory Science, Kenyatta University.
  • From January, 2012 –January, 2013: Coordinator, School of Health Sciences, Mount Kenya University, Mombasa Campus.
  • From 1st May 2008 up to August, 2009, Exam Co-coordinator, Kenya School of Medical Science and Technology, Thika.