The public health importance of tuberculosis and the economic losses caused by the disease and the others named rinder pest, foot and mouth, lumphy skin disease and haemorrhagic septicaemia make eradicat ion of these diseases are essential. The suggestion made by the author and others that tuberculin, testing and vaccination programme measures should be carried out simultaneously to reduce the time and the cost of the campaign. The experiments were investigated in freizian and buffaloe calves both sensitized with BCG vaccine and six weeks later, each group vaccinated with one viral or bacterial vaccines under the study. Tuberculin testing were carried out simultaneously and two months later of vaccinations. In conculsion foot and mouth, rinder pest, lumpy skin and haemorrhagic septicaemia vaccination did not interfer with tuberculin reactions. A fact which may be of economic value during control campaign.