Volume 98, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Boosted tuberculin skin test (TST) reactions can be misclassified as new latent tuberculosis (TB) infection. To our knowledge, no study has evaluated the prevalence of TST boosting in a population-based sample in high TB burden settings. We determined the prevalence of TST boosting among urban residents in Uganda. We evaluated 99 participants with initial TST < 5 mm and repeated a skin test after 2 weeks. We found that only 2% had boosted TST reactions suggesting that most TST conversions could represent new TB infections in this high-burden setting.


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  • Received : 24 Jul 2017
  • Accepted : 24 Sep 2017
  • Published online : 08 Jan 2018
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