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Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
Published on: February 16, 2020
New approaches and emerging technologies in the diagnosis of childhood tuberculosis
1Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Cape Town, South Africa. bjmarais@sun.ac.za
Insights
Childhood tuberculosis (TB) diagnosis is challenging, especially in HIV-infected children. Recent advances offer hope for accurate diagnosis and reduced disease burden in pediatric TB cases.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Childhood tuberculosis (TB) is often overlooked in control programs, despite significant morbidity and mortality in endemic areas.
- Children with TB rarely transmit the disease, leading to neglect in control efforts.
- Accurate diagnosis and child-friendly treatment are crucial for reducing the global burden of pediatric TB.
Purpose of the Study:
- To review recent advancements in diagnosing childhood tuberculosis.
- To highlight challenges in pediatric TB diagnosis, particularly in immunocompromised children.
Main Methods:
- Review of bacteriological, immunological, radiological, and symptom-based diagnostic approaches for childhood TB.
- Focus on diagnostic challenges in immunocompetent versus immunocompromised (HIV-infected) children.
Main Results:
- Diagnosis of latent infection or active TB is feasible in immunocompetent children, even in resource-limited settings.
- Accurate diagnosis of TB in HIV-infected children remains a significant challenge.
Conclusions:
- Despite progress in treatment accessibility, accurate diagnosis of childhood TB persists as a major hurdle.
- Further research and development are needed to improve diagnostic tools for pediatric TB, especially in vulnerable populations.
Abstract:
Childhood tuberculosis (TB) has long been neglected by TB control programmes, as children tend to develop sputum smear-negative disease and rarely contribute to disease transmission. However, children suffer severe TB-related morbidity and mortality in areas with endemic TB and carry a significant proportion of the global disease burden. Apart from improved control of the global TB epidemic, access to accurate diagnosis and effective treatment is essential to reduce the disease burden associated with childhood TB. Access to child friendly anti-TB treatment is improving, but establishing an accurate diagnosis remains a challenge. This review provides an overview of recent advances in the diagnosis of childhood TB, focusing on bacteriological, immunological, radiological and symptom-based approaches. It is possible to establish a fairly accurate diagnosis of either latent infection or active TB in immunocompetent children, even in resource-limited settings, but establishing an accurate diagnosis of TB in HIV-infected (immunocompromised) children remains a major challenge.
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