COMPARATIVE SEROLOGIC STUDY OF EQUINE PIROPLASMOSIS, WITH CARD AND COMPLEMENT-FIXATION TESTS

  • 1 January 1979
    • journal article
    • research article
    • Vol. 40  (4) , 529-531
Abstract
An agglutinating antigen [Ag] and a rapid card test (CT) for equine piroplasmosis was developed. The Ag for the CT was prepared from lyophilized Babesia caballi complement-fixation (CF) Ag. Serum and plasma samples for testing were obtained from known B. caballi-infected horses and clinically normal horses maintained at the laboratory. Serum samples also were obtained from horses outside the continental USA, in areas where piroplasmosis is endemic. Comparative CT and CF tests were done on all samples. The CT correctly identified 85% of 192 plasma samples from known infected and normal horses and 92% of 188 serum samples from these same horses. The CT results agreed closely with CF results. There was good agreement between CT and CF results on serum samples from horses outside the USA. Of 19 CF-positive samples, 90% were CT-positive and 92% of 177 CF-negative samples were CT-negative.

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