Case Study

Malawi – Active TB Case-finding with OneStopTB Clinic

Malawi 7 OneStopTB trucks

Active TB case finding was implemented in urban areas of Malawi to improve TB detection among high-risk and vulnerable populations.

Deployment of 7 Mobile Clinics

Seven mobile diagnostic units equipped with EasyDR digital X-ray, CAD4TB, and GeneXpert were deployed.

Focus on high-risk populations

Screening targeted high-risk and vulnerable groups in urban cities.

AI-supported TB screening

Digital chest X-ray with CAD4TB supported rapid identification of presumptive TB cases.

Result

Between March 2018 and December 2021, 395,279 individuals from high-risk groups were screened for TB. This includes 220,194 males (56%) and 175,085 females (44%). Of these,

53 ,638 people
identified as presumptive TB
2 ,775 people
diagnosed with TB
  • Representing a yield of 955 per 100,000 (NNS:105). The yield is significant.
Malawi 7 OneStopTB trucks
Conclusion
  • Active TB case finding of Systematic screening remains a priority area that needs more resources to find the missing TB cases.
  • The use of CAD4TB best fits screening for large numbers of people and quicker identification of TB presumptive cases.

REFERENCE: I. Dambe (2022, April 7). Targeted Active TB case finding using mobile TB diagnostic units. New tools for TB detection, Delft Imaging webinar, A