The TB Surge intervention: an optimized approach to TB case-finding in Nigeria

Abstract

INTRODUCTION: TB remains one of the leading causes of death in Nigeria, and despite progress in treatment coverage, a 56% gap in national case notifications remains. This gap is attributable in part to underdiagnosis due to missed cases in health facilities. The TB Surge intervention presented an opportunity to address barriers to optimal case detection in public health facilities. METHODS: KNCV Nigeria implemented the TB Surge intervention under the USAID-funded TB-LON Project in 1,041 public facilities from June 2020 to September 2022. Trained ad-hoc staff screened hospital attendees, linked identified presumptive TB cases to diagnosis and confirmed TB cases to treatment. Data were reported using the Commcare application. Robust project monitoring was used to address gaps. RESULTS: Of a total of 12,195,874 hospital attendees screened for TB, 729,369 identified as presumptive TB were tested and 65,029 TB cases were diagnosed; 8% of the TB cases were children. Overall TB yield was 9%. Medical ward service delivery point had the highest TB yield of 21%. The number needed to test was 11 and the number needed to screen was 188. CONCLUSION: The TB Surge intervention was of strategic importance in addressing missed cases and barriers to prompt TB diagnosis in health facilities.