Core genome multilocus sequence typing scheme for improved characterization and epidemiological surveillance of pathogenic Brucella by Abdel-Glil, MY, Thomas, P, Brandt, C, Melzer, F, Subbaiyan, A, Chaudhuri, P, Harmsen, D, Jolley, KA, Janowicz, A, Garofolo, G, Neubauer, H, Pletz, MW