T-spot test is an ELISPOT-based diagnostic test used to diagnose tuberculosis. It is manufactured by Oxford Immunotec in the UK and was developed by researchers at the University of Oxford in England. In Russia, dough production is localized at the facilities of the Generium biotechnology company in the Vladimir region . The test is available in most European countries, USA, Russia and other countries. In Russia, it is performed in St. Petersburg, in the laboratories of Explan, Labtest, SZTsDM.