比利时牛群中牛皮下蝇蛆病的群体血清阳性率及风险评估

Herd-level seroprevalence and risk-mapping of bovine hypodermosis in Belgian cattle herds.

作者信息

Haine D, Boelaert F, Pfeiffer D U, Saegerman C, Lonneux J-F, Losson B, Mintiens K

机构信息

Department of Veterinary Clinical Sciences, The Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield AL9 7TA, UK.

出版信息

Prev Vet Med. 2004 Aug 30;65(1-2):93-104. doi: 10.1016/j.prevetmed.2004.06.005.

DOI:10.1016/j.prevetmed.2004.06.005

PMID:15454329

Abstract

Our objective was to determine the seroprevalence of Hypoderma spp. and to develop a spatial model describing the risk surface of warble-fly infection in Belgian cattle herds (adjusting for herd size, herd type, local temperature, rainfall, relative air humidity and land-cover). This survey was carried out in 390 selected herds of all types (dairy, mixed and beef) from December 1997 to March 1998, which were included in a national infectious bovine rhinotracheitis and paratuberculosis (Johne's-disease) survey. All animals >24 months old were blood sampled and an ELISA was used on pooled serum samples (10 animals per pool). The herd seroprevalence was 48.7% (95% confidence interval: 43.6-53.8); positive herds were mainly in the south of the country and along the North Sea coast. The logistic multiple-regression model of herd-level seropositivity indicated that mixed-type and beef-cattle herds have more than four-fold and two-fold increases in the odds of being Hypoderma-positive, respectively, compared with dairy herds.

摘要

我们的目标是确定皮蝇属的血清阳性率，并建立一个空间模型，描述比利时牛群中牛皮蝇感染的风险面（根据牛群规模、牛群类型、当地温度、降雨量、相对空气湿度和土地覆盖情况进行调整）。这项调查于1997年12月至1998年3月在390个选定的各类牛群（奶牛、混合和肉牛）中进行，这些牛群被纳入一项全国性的传染性牛鼻气管炎和副结核病（约翰氏病）调查。对所有年龄大于24个月的动物进行采血，并对混合血清样本（每池10只动物）进行酶联免疫吸附测定（ELISA）。牛群血清阳性率为48.7%（95%置信区间：43.6 - 53.8）；阳性牛群主要分布在该国南部和北海沿岸。牛群水平血清阳性的逻辑多元回归模型表明，与奶牛群相比，混合型和肉牛群皮蝇属阳性几率分别增加四倍多和两倍多。