Skip to main content
. 2010 Aug 19;5(8):e12287. doi: 10.1371/journal.pone.0012287

Figure 2. Tuberculin Skin Test (TST) and BCG scar results.

Figure 2

Two T.U. PPD were injected into the forearm of each individual. The average length x width (mm) of the induration was measured 48 – 72 hours later at (A) 4½ months of age (Group 1, n = 51, Group 2, n = 39) and (B) 20– 28 months of age (Group1, n = 45, Group 2, n = 40). The black line represents a 5 mm ‘cut off’ for positive reactivity. (C) The relationship between scar and gender (male n = 42, female n = 43). Group 1 - vaccinated at birth, Group 2 - vaccinated at 4½ months of age.