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. 2022 Nov:36:100802.
doi: 10.1016/j.vprsr.2022.100802. Epub 2022 Oct 29.

Neospora caninum-associated abortions in cattle from Southern Brazil: Anatomopathological and molecular characterization

Leonardo Silva da Costa  1 , Jéssica Aline Withoeft  1 , João Vitor Bilicki  1 , Isadora Cristina Melo  1 , Alessandra Snak  2 , Gabriella Bassi das Neves  3 , Luiz Claudio Miletti  3 , Anderson Barbosa de Moura  2 , Renata Assis Casagrande  4
Affiliations

Neospora caninum-associated abortions in cattle from Southern Brazil: Anatomopathological and molecular characterization

Leonardo Silva da Costa et al. Vet Parasitol Reg Stud Reports. 2022 Nov.

Abstract

This study aimed to evaluate the N. caninum associated abortions in cattle in the state of Santa Catarina, in the southern Brazil. Aborted bovine fetuses were necropsied, submitting organ samples for histopathological evaluation. Brain fragments were analyzed by polymerase chain reaction (PCR). The diagnosis of abortion due to N. caninum was established through histopathology and molecular analysis in 53.84% (28/52) of the cases, with PCR detection in 71.42% (20/28). The histopathological evaluation showed lesions in 75% of the cases, characterized by mononuclear necrotizing encephalitis, mononuclear myocarditis, mononuclear myositis, mixed placentitis, and mononuclear pneumonia. Neospora caninum was the primary etiological agent associated with causes of abortion in cattle in the present study.

Keywords: Abortion; Cattle; Neospora caninum; Pathology.

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Conflict of interest statement

Conflict of interest The authors declare no conflict of interest. All authors have participated in the execution, analysis and conclusion of this study. The contents of this manuscript will not be submitted, or published elsewhere, while acceptance by the Journal is under consideration.

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