Theileria annulata: cross-reactions between a cell culture schizont antigen and antigens of East African species in the indirect fluorescent antibody test.
نویسندگان
چکیده
BURRIDGE, M. J., BROWN, C. G. D., AND KIMBER, C. D. 1974. Theileria anndata: Cross-reactions between a Cell Culture Schizont Antigen and Antigens of .East African Species in the Indirect Fluorescent Antibody Test. Experimental Parasitology 35, 374380. A schizont antigen for the indirect fluorescent antibody test was prepared from an in &TO culture suspension of lymphoid cells infected with Theileria annulata macroschizonts. Two cattle recovered from T. annulata infection showed marked rises in antibody titer to this schizont antigen, with peak titers of 1:40,960 and 1:2560. Using sera from these recovered cattle, T. annulata cell culture schizont antigen was shown to cross-react markedly with Theileria parva and Theileria lawrencei cell culture schizonts and with Theileria mutans piroplasms in the indirect fluorescent antibody test. In contrast, using high-titer antisera to T. parGa, T. lawrencei, and T. mutans, serological cross-reactions with T. anndata schizonts were only detected with T. parva and T. lawrencei antisera, and in <both instances these were minimal. The value of the indirect fluorescent antibody test in the differential diagnosis of Theileria species pathogenic for cattle is discussed. INDEX DESCRIPTORS: Indirect Fluorescent Antibody Test; Theileria anndata; Thderia aarua: Theileria lawrencei; Theileria mutans; Serology; Antigens; Cell cul. I
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ورودعنوان ژورنال:
- Experimental parasitology
دوره 35 3 شماره
صفحات -
تاریخ انتشار 1974