Dos Santos Laís Ferrari, Guimarães Maíra Freitas, de Souza Gisele Oliveira, da Silva Ivo Wesley Gomes, Santos Josenilton Rodrigues, Azevedo Sérgio Santos, Labruna Marcelo Bahia, Heinemann Marcos Bryan, Horta Mauricio Claudio
Parasitic Diseases Laboratory, Federal University of Vale do São Francisco (UNIVASF), Campus Ciências Agrárias, Rodovia BR 407, km 12, Lote 543, Projeto de Irrigação Senador Nilo Coelho s/n, Petrolina, PE, 56300-990, Brazil.
Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Orlando Marques de Paiva 87, São Paulo, SP, 05508-270, Brazil.
Trop Anim Health Prod. 2017 Dec;49(8):1715-1722. doi: 10.1007/s11250-017-1382-9. Epub 2017 Aug 31.
Leptospirosis is a bacterial zoonotic disease that causes severe reproductive problems in livestock and generates economic losses for farmers. This study aimed to determine the seroprevalence of anti-Leptospira antibodies in small mammals, both wild and domestic, in two distinct areas of the semi-arid region of northeastern Brazil: the National Park of Serra das Confusões (NPSC), state of Piauí, a preserved area; and rural areas in the municipalities of Petrolina and Lagoa Grande, state of Pernambuco, non-preserved areas. Serum samples were evaluated using the microscopic agglutination test (MAT). Approximately 4% (6/152) of the wild animals were positive, all of them in the non-preserved area. Overall, the seroprevalence rates among goats and sheep were 13.4 (77/576) and 4.6% (24/518), respectively, confirmed in both areas. The seroprevalence rates in dogs and cats were 5.6 (10/180) and 4.7% (2/43) and were determined only in the non-preserved area. The risk factors associated with Leptospira spp. infection were as follows: ages of 1-3 and > 3 years for goats and sheep, region (preserved area) for goats, intensive management system for sheep, and region (non-preserved area) for dogs and wildlife. The present study confirmed the presence of circulation of Leptospira spp. in both of these areas of the Caatinga biome, as well as a variety of serotypes in these areas.
钩端螺旋体病是一种细菌性人畜共患病，可导致家畜出现严重的繁殖问题，并给农民造成经济损失。本研究旨在确定巴西东北部半干旱地区两个不同区域（皮奥伊州的塞尔拉达斯孔富索斯国家公园（NPSC），一个保护区；以及伯南布哥州佩特罗利纳市和拉戈格兰德市的农村地区，非保护区）野生和家养小型哺乳动物中抗钩端螺旋体抗体的血清阳性率。使用显微镜凝集试验（MAT）对血清样本进行评估。约4%（6/152）的野生动物呈阳性，均来自非保护区。总体而言，山羊和绵羊的血清阳性率分别为13.4%（77/576）和4.6%（24/518），在两个区域均得到证实。狗和猫的血清阳性率分别为5.6%（10/180）和4.7%（2/43），仅在非保护区确定。与钩端螺旋体属感染相关的危险因素如下：山羊和绵羊的年龄为1 - 3岁及> 3岁、山羊的区域（保护区）、绵羊的集约化管理系统，以及狗和野生动物的区域（非保护区）。本研究证实了卡廷加生物群落这两个区域均存在钩端螺旋体属的传播，以及这些区域存在多种血清型。
