Tick-borne diseases of cattle in Paraguay. II. Immunisation against anaplasmosis and babesiosis |
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| Authors: | R C Payne O Osorio A Ybañez |
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| Institution: | Laboratorio de Investigación y Diagnóstico Veterinario, Del Ministerio de Agricultura y Ganadería, San Lorenzo, Paraguay. |
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| Abstract: | A total of 102 susceptible adult Holstein Friesian cattle imported into an area of Paraguay where anaplasmosis and babesiosis are endemic were immunised by infection with Anaplasma centrale and attenuated forms of Babesia bigemina and Babesia bovis obtained from Uruguay. The results indicated that the attenuated forms of both Babesia species protected cattle against heterologous field challenge whereas A. centrale did not invariably confer sufficient protection against a field challenge of A. marginale. |
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