Same Day Diagnosis of Extrapulmonary TB (TB Serositis and TB Meningitis).

Exclusion Criteria

• •1. Volunteers who refuse to sign informed consent and/or provide clinical details (Proxy consent will be obtained for participants who are incapacitated, with a follow up consent when they have recovered their capacity to consent)
• •2. Patients with current significant history of substance or alcohol abuse that may impact study visits.
• •3. Patients who are unable to communicate by telephone or who do not have a current active traceable contact number.
• •4. Patients not willing to undergo an HIV test.
• •5. Patients whose fluid sample volumes are insufficient to perform standard of care testing in addition to IRISA-TB
• •6. Positive sputum GXP within 2 weeks prior to serosal fluid or CSF sampling.