[Seroprevalence of Anaplasma marginale in cattle from Center-South Region of Paraná State, Brazil by a competitive ELISA test with recombinant MSP5-PR1 protein].

Anaplasma marginale prevalence was determined in 223 sera samples in 2-year old or older cattle, from the Center-Southern Region of the Paraná State, including Ponta Grossa, Guarapuava and Laranjeiras do Sul municipalities. A survey of antibodies IgG class against Anaplasma marginale was performed through a competitive immune absorbent assay (cELISA-PR1). From the 223 sera examined, 130 (58.