Service
IGRA Blood Test (TB Screening)
A single blood test that screens for tuberculosis infection. Not affected by previous BCG vaccination, so useful for anyone vaccinated before.
The IGRA (Interferon Gamma Release Assay) blood test needs only a single appointment. A blood sample is taken and analysed by a laboratory, and we provide your result with a clinician’s explanation.
Unlike the skin test, the IGRA is not influenced by a previous BCG vaccination, which makes it a practical choice for people who were vaccinated as children and need clear documentation.