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<p>A 1.5-year-old female Spitz dog was presented with a sudden onset of inappetence, weakness, anemia, and hemoglobinuria persisting for two days. The dog had a prior history of tick infestation. A thorough physical examination revealed pyrexia, lymphadenopathy, pale conjunctival and gingival mucous membranes, and a normal capillary refill time. Microscopic analysis of a Giemsa-stained peripheral blood smear identified the presence of <i>Babesia gibsoni</i>, which was further confirmed through PCR. Hematological analysis revealed severe anemia, neutropenia, eosinophilia, lymphocytosis, and thrombocytopenia. Serum biochemistry indicated significant hypoglycemia, hypoproteinemia, and hypoalbuminemia. Serum oxidant-antioxidant parameters revealed a marked increase in the level of oxidant and a decreased level of antioxidants. Genetic characterization based on the 18S rRNA gene fragment demonstrated complete sequence identity with <i>B. gibsoni</i> strains from Asia, Europe, and North America. Phylogenetic analysis revealed that the isolate (PQ143276) was most closely related to <i>B. gibsoni</i> strains from Sri Lanka and Spain, following a distinct geographical pattern. The therapy included a combination of oral metronidazole, doxycycline, and clindamycin which resulted in a favourable response. The dog regained appetite and vigor by the 10th day post-treatment. To the best of the authors’ knowledge, this is one of the few documented reports from Tripura that provides a comprehensive analysis of genetic characterization, phylogenetics, hemato-biochemical findings, and serum oxidant-antioxidant status of the infection, while also contributing to the understanding of its evolutionary relationships within the <i>Babesia</i> genus.</p>

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Molecular characterization, phylogenetic analysis, and successful therapeutic management of Babesia gibsoni infection in a 1.5-year-old female spitz from Tripura

  • 期刊论文

  • 发表日期：

    2025年11月1日

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  • Pradyumna Chakraborty,
  • Suvendu Kumar Behera,
  • Sulanki Sarkar,
  • H. Prasad,
  • J. B. Rajesh

摘要

A 1.5-year-old female Spitz dog was presented with a sudden onset of inappetence, weakness, anemia, and hemoglobinuria persisting for two days. The dog had a prior history of tick infestation. A thorough physical examination revealed pyrexia, lymphadenopathy, pale conjunctival and gingival mucous membranes, and a normal capillary refill time. Microscopic analysis of a Giemsa-stained peripheral blood smear identified the presence of Babesia gibsoni, which was further confirmed through PCR. Hematological analysis revealed severe anemia, neutropenia, eosinophilia, lymphocytosis, and thrombocytopenia. Serum biochemistry indicated significant hypoglycemia, hypoproteinemia, and hypoalbuminemia. Serum oxidant-antioxidant parameters revealed a marked increase in the level of oxidant and a decreased level of antioxidants. Genetic characterization based on the 18S rRNA gene fragment demonstrated complete sequence identity with B. gibsoni strains from Asia, Europe, and North America. Phylogenetic analysis revealed that the isolate (PQ143276) was most closely related to B. gibsoni strains from Sri Lanka and Spain, following a distinct geographical pattern. The therapy included a combination of oral metronidazole, doxycycline, and clindamycin which resulted in a favourable response. The dog regained appetite and vigor by the 10th day post-treatment. To the best of the authors’ knowledge, this is one of the few documented reports from Tripura that provides a comprehensive analysis of genetic characterization, phylogenetics, hemato-biochemical findings, and serum oxidant-antioxidant status of the infection, while also contributing to the understanding of its evolutionary relationships within the Babesia genus.