evidence: Interpretation of chest radiographs at 12 weeks showed that the mean number of zones involved in the vitamin D arm were 1.35 v/s 1.82 zones in the placebo arm (p 0.004) (95% CI 0.15, 0.79).
intervention: 600,000 IU of Intramuscular vitamin D3
comparator: placebo for 2 doses
outcome: MTBs-induced IFN-g secretion