Reliable, accessible, cost-effective, & easy (RACE) diagnostic modality: A key for elimination of tuberculosis.

Area of Science:

• Medical Diagnostics
• Infectious Diseases
• Public Health

Background:

• Tuberculosis (TB) remains a significant global health issue, with over a third of cases undetected annually.
• Drug-resistant TB presents a growing challenge, necessitating rapid and accurate diagnostic methods.
• Existing diagnostic tools like liquid culture, LPA, and CBNAAT have advanced TB detection but still face limitations in accessibility and cost.

Purpose of the Study:

• To review the current landscape of TB diagnostics and identify unmet needs.
• To discuss the critical requirements for an ideal diagnostic test for TB elimination.
• To explore the potential of point-of-care triage tests for improving TB case detection and management.

Main Methods:

• Narrative review of recent advancements in TB diagnostic technologies.
• Analysis of the limitations of current diagnostic approaches in resource-limited settings.
• Discussion on the characteristics of an ideal point-of-care TB diagnostic test.

Main Results:

• Despite progress, a precise, affordable, and accessible diagnostic model for all forms of TB and latent infection is still lacking.
• Current advanced diagnostics are not always suitable for rural or hard-to-reach areas.
• A point-of-care triage test performed by minimally trained staff or self-administered is proposed as a potential solution.

Conclusions:

• The development of a Reliable, Accessible, Cost-Effective, and Easy (RACE) diagnostic modality is essential for effective TB control and transmission reduction.
• A point-of-care test could significantly improve TB detection rates, especially in underserved populations.
• Such a test is crucial for achieving global TB elimination goals.