Detection of anti-Trypanosoma spp. antibodies in cattle from southern Brazil.

IF 1.3 4区农林科学 Q2 Veterinary

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2023-12-22 eCollection Date: 2023-01-01 DOI:10.1590/S1984-29612024002

Gisele Vaz Aguirre Samoel, Fagner D'ambroso Fernandes, Isac Junior Roman, Bibiana Teixeira Rodrigues, Luiz Claudio Miletti, Patrícia Bräunig, Renata Rojas Guerra, Luís Antônio Sangioni, Juliana Felipetto Cargnelutti, Fernanda Silveira Flores Vogel

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Abstract

Bovine trypanosomosis, caused by Trypanosoma vivax, is a disease that originated in Africa and currently affects cattle in several South American countries, including almost all Brazilian states. Despite the reports on T. vivax infection in southern Brazil, data on its circulation status is currently unavailable. In this study, we aimed to detect anti-Trypanosoma spp. IgG antibodies in cattle from Rio Grande do Sul and suggest areas with T. vivax transmission risk. A total of 691 serum samples from cattle in the intermediate regions of Rio Grande do Sul were analyzed using indirect immunofluorescence assay (IFA). The overall seroprevalence of anti-Trypanosoma antibodies in cattle was 24.6% (170/691). The detection rate ranged from 0-37.3%, with a high prevalence in the intermediate regions of Ijuí (37.3%), Uruguaiana (30.7%), and Passo Fundo (28.9%). Thus, these regions were suggested as possible bovine trypanosomosis risk areas due to the high seroprevalence. This is the first serological study to determine Trypanosoma spp. infection status in cattle from Rio Grande do Sul, providing data on the epidemiology of trypanosomosis in the state.

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在巴西南部的牛群中检测抗锥虫抗体。

由体内锥虫引起的牛锥虫病是一种起源于非洲的疾病，目前影响着南美多个国家的牛群，其中包括巴西几乎所有的州。尽管有报告称巴西南部存在间日疟原虫感染，但目前还没有关于其流行状况的数据。在这项研究中，我们旨在检测南里奥格兰德州牛群中的抗盘尾丝虫属 IgG 抗体，并对有 T. vivax 传播风险的地区提出建议。我们使用间接免疫荧光法（IFA）分析了南里奥格兰德州中间地区的 691 份牛血清样本。牛的抗锥虫抗体总血清阳性率为 24.6%（170/691）。检出率在 0-37.3% 之间，中间地区伊胡伊（37.3%）、乌拉圭亚纳（30.7%）和帕索福多（28.9%）的发病率较高。因此，由于血清阳性率较高，这些地区被认为可能是牛锥虫病的高危地区。这是首次通过血清学研究确定南里奥格兰德州牛的锥虫感染状况，为该州锥虫病的流行病学提供了数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Brasileira De Parasitologia Veterinaria PARASITOLOGY-VETERINARY SCIENCES

CiteScore

2.60

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： La revista es un órgano de difusión del Colegio Brasileño de Parasitología Veterinaria, con una especificidad dentro de esa área, la difusión de los resultados de la investigación brasileña en las áreas de Helmintología, Protozoología, Entomología y agentes transmitidos por artrópodos, relacionados con la salud animal.