<qa>  What is the positive result for interferon gamma release assay?- History andor presence of tuberculosis TB; positive result for interferon gamma release assay IGRA i.e., QuantiFERON TB-Gold, subjects who have resided in regions where tuberculosis and mycosis are endemic during 90 days before screening, or who intend to visit such a region during the duration of the study i.e., deserts areas, Eastern Europe, Central and South America, Africa except Egypt, Russia, Asia, Indonesia. The test may be repeated if the initial test result is indeterminate. 