Aydinlioglu H.Caglayan S.Kansoy S.Yaprak I.Seckin E.Bakiler A.R.Aksoy S.2019-10-272019-10-2719930269-5022https://doi.org/10.1111/j.1365-3016.1993.tb00408.xhttps://hdl.handle.net/11454/24215Summary. Two hundred and nineteen healthy newborns were vaccinated with the BCG vaccine, and their immunity was checked thereafter at 3,6 and 12 months of age. We determined that 87% of tuberculin reactivity at 3 months declined to 61% at 12 months. Revaccination of nonreactive infants provided a 100% rate of reactivity. In the light of this information we propose a revision in the BCG vaccination programme in developing countries. We also found a close relationship between the tuberculin reactivity and scar formation after BCG vaccination, suggesting that a simple check of the left deltoid region for a BCG scar may give enough information about the child's immunity to tuberculosis. Copyright © 1993, Wiley Blackwell. All rights reserveden10.1111/j.1365-3016.1993.tb00408.xinfo:eu-repo/semantics/closedAccessArticle733343388378173Q1