- The order of prime-boost vaccination of neonatal calves with Mycobacterium bovis BCG and a DNA vaccine encoding mycobacterial proteins Hsp65, Hsp70, and Apa is not critical for enhancing protection against bovine tuberculosis. Skinner, M.A., Wedlock, D.N., de Lisle, G.W., Cooke, M.M., Tascon, R.E., Ferraz, J.C., Lowrie, D.B., Vordermeier, H.M., Hewinson, R.G., Buddle, B.M. Infect. Immun. (2005)