[BCG vaccination, Critical study (author's transl)].

On the observation that vaccination BCG used during the campaign of erradication of tuberculosis produced a very low conversion of tuberculin reaction postvaccination, authors have studied two groups of children vaccinated with a different BCG vaccine. They have controlled postvaccination allergy and the protection offered by the vaccines when this children are highly exposed to TB. They conclude that vaccination's efficacy is not present and today there are not indications for its' use.