Inferring Mycobacterium bovis transmission between cattle and badgers using isolates from the Randomised Badger Culling Trial od van Tonder, AJ, Thornton, MJ, Conlan, AJK, Jolley, KA, Goolding, L, Mitchell, AP, Dale, J, Palkopoulou, E, Hogarth, PJ, Hewinson, RG, Wood, JLN, Parkhill, J