We report a follow-up study of 29 subjects with negative tuberculin skin test (TST) results in association with positive gamma interferon release assay (IGRA) results, mainly due to responses to CFP-10 in the T-SPOT.TB assay, during a contact investigation. One year later, 12/29 subjects (41%) had converted to positive TST results in association with negative IGRA results.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2043314 | PMC |
| http://dx.doi.org/10.1128/CVI.00185-07 | DOI Listing |
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