Serological evidence of Toxoplasma gondii occurrence in naturally infected sheep in the Teresina microregion, Piauí, Brazil

Arquivos do Instituto Biologico Pub Date : 2021-01-01 DOI:10.1590/1808-1657000152020

L. C. S. Feitosa, Andressa de Carvalho Teixeira Lima Celestino, Siluana Benvindo Ferreira, J. F. S. Cardoso, T. G. Tenório, N. Paula, A. Mineiro

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Abstract

Toxoplasmosis is a zoonosis of reproductive nature that is transmitted to humans mainly by ingestion of undercooked meat or drinking oocyte-contaminated water. The slaughter of small ruminants in clandestine slaughterhouses and the presence of companion animals in these locations may be epidemiologically important for the dissemination of the disease. The objective of the present study was to determine toxoplasmosis prevalence by researching anti- Toxoplasma gondii antibodies in meat sheep herds from farms in Teresina microregion, Piauí, Brazil. A total of 450 blood samples were collected from sheep of both sexes, belonging to 28 herds from the 14 municipalities that comprise the microregion. The samples were analyzed by the enzyme-linked immunosorbent assay (ELISA), and the presence of anti- T. gondii antibodies was observed in 62% (279/450) of the animals in all the municipalities and on at least one farm in each municipality. The high occurrence of positive animals is an indication of reproductive problems in these herds, characterizing a problem for both sheep rearing and public health.

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巴西Teresina微区(Piauí)自然感染绵羊中刚地弓形虫发生的血清学证据

弓形虫病是一种生殖性质的人畜共患病，主要通过摄入未煮熟的肉类或饮用被卵母细胞污染的水传播给人类。在秘密屠宰场屠宰小反刍动物以及在这些地点存在伴侣动物，在流行病学上可能对疾病的传播具有重要意义。本研究的目的是通过研究巴西Teresina微区Piauí农场肉羊群中弓形虫抗体来确定弓形虫病的流行情况。从构成该微区的14个市镇的28个牧群的男女羊身上共采集了450份血液样本。采用酶联免疫吸附试验(ELISA)对样本进行分析，在所有市和每个市至少一个农场的62%(279/450)的动物中发现了抗弓形虫抗体。阳性动物的高发生率表明这些畜群存在生殖问题，这是羊群饲养和公共卫生都面临的问题。

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Arquivos do Instituto Biologico

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48 weeks