葡萄牙中北部牛群中肝片吸虫病的群体血清阳性率。

Herd-level seroprevalence of fasciolosis in cattle in north central Portugal.

作者信息

Conceição M A P, Durão R M B, Costa I M H, Castro A, Louzã A C, Costa J C

机构信息

Escola Superior Agrária de Coimbra, Instituto Politécnico de Coimbra, Bencanta, 3040-316 Coimbra, Portugal.

出版信息

Vet Parasitol. 2004 Aug 13;123(1-2):93-103. doi: 10.1016/j.vetpar.2004.04.012.

DOI:10.1016/j.vetpar.2004.04.012

PMID:15265574

Abstract

An epidemiological study of Fasciola hepatica in cattle was implemented in the north central region of Portugal. Both an enzyme-linked immunosorbent assay and an egg shedding quantification technique were used in the follow-up of seven herds. Two of these herds were negative and the other five were positive for F. hepatica. A herd cut-off of value of 0.425 optical density was calculated and herd sensitivity (HSe) and herd specificity (HSp) were defined. Three seroprevalence studies were also implemented in the region with stratification by county sub-regions for a period of 18 months. Overall mean herd prevalence in Vagos of 11, 23 and 48% was progressively found for the three studies, respectively.

摘要

在葡萄牙中北部地区开展了一项关于牛肝片吸虫的流行病学研究。在对七个牛群的跟踪监测中，同时使用了酶联免疫吸附测定法和虫卵排泄定量技术。其中两个牛群检测结果为阴性，另外五个牛群肝片吸虫检测呈阳性。计算得出牛群截断光密度值为0.425，并定义了牛群敏感性（HSe）和牛群特异性（HSp）。该地区还开展了三项血清阳性率研究，按县分区进行分层，为期18个月。在这三项研究中，分别逐渐发现瓦戈斯的总体平均牛群患病率为11%、23%和48%。