Fig. 1From: Close contact interferon-gamma response to the new PstS1(285–374):CPF10: a preliminary 1-year follow-up studyBaseline of study groups (T0) and follow-up (T1) characteristics. Recent close contact (rCt) screening via tuberculin skin test (TST), at T0, and clinical outcomes after 1-year follow up (T1) resulting in five different groups. All rCt-TSTpos (≥5 mm) were offered free-of-cost treatment for latent tuberculosis infection (tLBTI). A blood specimen was collected upon TST conversion or an active TB diagnosisBack to article page