The WHO says that the use of currently available commercial blood or serological tests to diagnose active TB often leads to misdiagnosis, mistreatment and potential harm to public health.

World Health body, therefore, urged countries to ban the inaccurate and unapproved blood tests. It has asked to rely on an accurate microbiological and molecular tests.
The new recommendation comes after 12 months of rigorous analysis of evidence gathered by WHO and global experts.