Fig. 4

Tests performed under different approaches in the four countries. Legend. The model assumes pool sizes of 4 with both pooling and individual testing sensitivity and specificity of 100% for a testing threshold resulting in missed cases of 4.4%, 4.7%, and 5.1% for Bangladesh, Nigeria, and Viet Nam using qXR v3, respectively, and 3.3% for Zambia using CAD4TB v7. The percentages are reported with reference to the baseline approach for the respective countries