Vaccination of calves with Mycobacterium bovis Bacillus Calmette–Guerin reduces the frequency and severity of lesions of bovine tuberculosis under a natural transmission setting in Ethiopia

G. Ameni^*, K. Tafess, A. Zewde, T. Eguale, M. Tilahun, T. Hailu, A. Sirak, F. J. Salguero, S. Berg, A. Aseffa, R. G. Hewinson, H. M. Vordermeier

^*Awdur cyfatebol y gwaith hwn