New sample collection methods to expand TB testing.

The new guidelines on tests for TB recommend easy-to-collect tongue swab samples, as well as a cost-saving sputum pooling strategy to increase testing efficiency for TB and rifampicin-resistant TB. Tongue swabs allow adults and adolescents who cannot produce sputum to receive TB testing for the first time, enabling disease detection among people who are at an increased risk of dying from TB. Sputum pooling, where samples from several individuals are combined and tested together, can significantly reduce commodity costs and machine time, leading to faster results for people and TB programmes – an approach specifically recommended when resources are exceptionally constrained.