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Updated: Aug 19, 2025

A Tuberculosis Molecular Bacterial Load Assay TB-MBLA
Published on: April 30, 2020
Finding the missing children for TB care and prevention in Kenya
E J Carter1, B Mungai2, T Njoroge3
1Department of Medicine, Warren Alpert Medical School, Brown University, Providence, RI, USA.
Insights
A health system strengthening program in Kenya increased tuberculosis preventive therapy (TPT) uptake in child contacts under five. Systematic screening in outpatient clinics also boosted tuberculosis case notifications in children under fifteen.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Pediatric Health
Background:
- Tuberculosis (TB) remains a significant global health challenge, particularly affecting children.
- Improving access to TB preventive therapy (TPT) and enhancing diagnostic rates in pediatric populations are critical public health goals.
- Targeted interventions are needed in high TB burden settings to address pediatric TB effectively.
Purpose of the Study:
- To enhance the uptake of TB preventive therapy (TPT) among child contacts under five years old.
- To increase the diagnosis rate of TB in children under fifteen presenting for routine care.
- To evaluate the effectiveness of a combined health system strengthening approach in Kenya.
Main Methods:
- A clinic-based child contact management strategy was implemented, including cost reimbursements and healthcare worker education.
- Community health screeners were deployed in pediatric outpatient departments for verbal TB symptom screening.
- Data were collected over 15 months in 100 high TB burden facilities across nine Kenyan counties.
Main Results:
- Out of 2,022 identified child contacts, 91% were evaluated, and 8% were diagnosed with TB disease.
- Of those eligible, 95% initiated TPT, and 83% completed the therapy.
- Screening of 140,444 children in outpatient settings identified 39% with TB symptoms, leading to 4% diagnosed with TB disease.
Conclusions:
- Health system strengthening, particularly a clinic-based child contact management program, significantly increased TPT initiation among children.
- Systematic screening in outpatient clinics effectively increased TB case notifications in children.
- Further research is needed to optimize screening tools and diagnostic pathways for pediatric TB evaluation.
Abstract:
SETTING: One hundred high TB burden facilities in nine counties in Kenya.OBJECTIVES: 1) To increase uptake of TB preventive therapy (TPT) among child contacts aged <5 years, and 2) to increase TB diagnosis in children aged <15 years presenting to health facilities for routine care.DESIGN: For objective 1, a clinic-based child contact management strategy incorporating transport/healthcare cost reimbursement, monitoring and evaluation tools, and healthcare worker education was utilized. For objective 2, community health screeners were established in pediatric outpatient departments to perform verbal screening, flagging symptomatic children for further evaluation.RESULTS: Over 15 months, identification of 8,060 individuals diagnosed with bacteriologically confirmed TB led to 2,022 child contacts. Of these, 1,848 (91%) were evaluated; 149 (8%) were diagnosed with TB disease, leaving 1,699 (92%) eligible for TPT; 1,613 (95%) initiated TPT and 1,335 (83%) completed TPT. In outpatient settings, 140,444 children were screened; 54,236 (39%) had at least two TB symptoms; 2,395 (4%) were diagnosed with TB diseaseCONCLUSION: Health system strengthening supporting a clinic-based child contact management program increased the number of children initiating TPT. Systematic screening in outpatient clinics can lead to increased TB case notifications; however, optimal screening tools and clearer diagnostic pathways for the evaluation of these children are needed.
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