Results of tuberculin skin tests performed three months after intradermal vaccination with the Moreau-Rio de Janeiro strain of BCG were analyzed. The tests were made upon 7,790 persons, including a group of infants in their first trimester of life, a delicate and obviously necessary object of attention today. The percentage of positive reactors in the whole population group tested was 69%. A detailed analysis of the reactiveness in the different age groups was carried out. Moreover, that this study is opportune has been stressed not only because of the rising interest in Brazil in this type of immunization but also because of the need to compile information supporting prophylactic action.
Tuberculosis; BCG vaccination, intradermic; Tuberculin test
