aAn IGRA may be preferable to a TST for students who have had a BCG vaccine since there is minimal chance for a false positive from an irga IGRA也许是更好的对TST为有BCG疫苗的学生,因为有最小的机会为假阳性从irga[translate]
There is little disagreement that screening for latent tuberculosis (TB) infection (LTBI) prior to biologic therapy is necessary. Unfortunately, there is much less agreement with regard to how best to accomplish this task. A decade ago, we had just one screening tool, the tuberculin skin test ...
A40yearoldwomanborninthePhillipinesbutinCanadafor20yearsisgoingtobecomeapersonalsupportworker.ShehadtheBCGduringgradeschool.ShouldanIGRAbedoneifsheisTSTpositive?IGRA InterferonGammaReleaseAssayTHEORY:Aperson’sT-cellsthatpreviouslyTweresensitizedtoTBantigenproducehighlevelsofIFN-gammawhenre-exposedtoIFNrethesame...
& Daley, C.L. You can't always get what you want, but if you try sometimes (with two tests--TST and IGRA--for tuberculosis) you get what you need. Ann Rheum Dis 71, 1757-60 (2012).Winthrop KL, Weinblatt ME, Daley CL. You can't always get what you want, but if you try ...
cross-reactswithBCGandnontuberculousmycobacteria.The2com- merciallyavailableIGRAs,theQuantiFERON-TBGoldIn-Tubetest (Qiagen)andtheT-SPOT.TBtest(OxfordImmunotec),aremoreexpen- sivethantheTST(about$50-$100each)anduse2or3relativelyTB- specificantigensthatdonotcross-reactwithBCGandarelesslikely ...