“…Cross-reactivity with antibodies against A. centrale , A. ovis , A. phagocytophilum and recently a new genotype of Ehrlichia (BOV2010), have been reported ( Dreher et al , 2005 ; Al-Adhami et al , 2011 ). However, in Brazil other species of the blood-borne bacterial family Anaplasmataceae infecting cattle does not have been described, except occasional reports of A. bovis, limited to the state of Rio de Janeiro ( Santos and Carvalho, 2006 ; Melo Junior et al , 2010 ). Therefore, although it is not possible to affirm that the specificity of the rMSP5 LAT is restricted to A. marginale , in areas in which bovine anaplasmosis is endemic, and other Anaplasmataceae do not occur, is a useful epidemiological tool.…”