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Presence of Trypanosoma theileri in Spanish Cattle
Author(s) -
Villa Aleida,
Gutierrez Carlos,
Gracia Elena,
Moreno Bernardino,
Chacón Gema,
Sanz Pablo Varela,
Büscher Philippe,
Touratier Louis
Publication year - 2008
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1196/annals.1428.016
Subject(s) - isolation (microbiology) , biology , theileria , pathogenicity , trypanosoma , anemia , trypanosomiasis , veterinary medicine , zoology , medicine , virology , microbiology and biotechnology , parasite hosting , world wide web , computer science
Trypanosoma theileri (Laveran, 1902) has been diagnosed in many countries and is commonly considered as a nonpathogenic hemoparasite, although some authors have described clinical signs in cattle infected with T. theileri . In April and May, 2005, 12 blood samples were received at the Exopol Diagnostic Laboratory (Zaragoza, Spain) from a Spanish bull‐fighting farm located at Seville province. Clinical exploration of the animals revealed fever, progressive weight loss, anemia, and frequent recumbent position. Microscopic examination showed Theileria spp. in all cases (12), and in four of them, T. theileri was also observed. The clinical picture observed in the animals could be compatible with T. theileria infection. However, the contribution of T. theileri to the clinical signs seen at least in four cases is unknown. Further studies are necessary to determine the pathogenicity of T. theileri in the different animal species. To our knowledge, this is the first isolation of T. theileri in Spain.