Products & Services


Oxford Immunotec’s first product based on the T-SPOT technology platform is the T-SPOT.TB test.

The T-SPOT.TB test is a revolutionary product that diagnoses both latent TB infection and active disease by measuring T cells that have been specifically activated by Mycobacterium tuberculosis (MTB) antigens.

T-CellXtendLogoregistered copy

The T-Cell Xtend reagent is an antibody complex that is added to blood samples in the laboratory immediately before running the T-SPOT.TB assay. It allows blood samples to be processed up to 32 hours after venepuncture without affecting the accuracy of the test.