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首页> 外文期刊>International journal of medical microbiology: IJMM >Seasonal occurrence of canine babesiosis is influenced by local climate conditions
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Seasonal occurrence of canine babesiosis is influenced by local climate conditions

机译：犬幼犬病的季节性发生受到当地气候条件的影响

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摘要

Global warming and its effect on local climate conditions is one of the presumed underlying causes for changes in temporal and spatial distribution of vector-borne diseases. In Europe, canine babesiosis is transmitted by Dermacentor reticulatus. This hard tick species is observed to spread to new endemic areas. Within these new areas, specific local climate conditions may be responsible for sudden seasonal onset and termination of occurrence of this disease in dogs. From 2000 to 2006, 343 confirmed cases of canine babesiosis were documented at the Veterinary University of Vienna and in the Laboratory for Veterinary Diagnostic (INVITRO, Vienna). Estimated week of infection was analysed for mean air and soil temperature, relative humidity, and precipitation for each case. For seasonal start in spring, a sudden rise of air temperature Lip to 12 degrees C and defrosting of soil were essential. In autumn, the seasonal start was associated with a drop of temperature below 17 degrees C. Termination of occurrence of canine babesiosis, independent of season, correlated either with a sudden drop of temperature (Delta T> 9 degrees C) with concurrent heavy rain, persistent drought, or with air temperature above 20 degrees C (spring/summer) or below 5 degrees C (autumn/winter). Relative humidity and precipitation did not have a major influence on the incidence of canine babesiosis at all. Global climate changes and adaptation of ticks to new environmental conditions introduce vector-borne diseases into new areas. (C) 2008 Elsevier GmbH. All rights reserved.
机译：全球变暖及其对当地气候条件的影响是病媒传播疾病的时空分布变化的潜在根本原因之一。在欧洲，犬幼虫病是由网状真皮病菌传播的。观察到这种硬壁虱物种扩散到新的流行地区。在这些新区域内，特定的当地气候条件可能是导致这种疾病在犬中突然发作和终止的原因。从2000年到2006年，维也纳兽医大学和兽医诊断实验室（维也纳INVITRO）记录了343例犬瘟病确诊病例。分析每种情况下估计感染周的平均空气和土壤温度，相对湿度和降水。对于春季的季节性开始，空气温度Lip突然升高至12摄氏度和土壤除霜至关重要。在秋季，季节的开始与气温下降低于17摄氏度有关。犬幼虫病的发生终止与季节无关，与气温突然下降（Delta T> 9摄氏度）并发大雨，持续干旱，或气温高于20摄氏度（春季/夏季）或低于5摄氏度（秋季/冬季）。相对湿度和降水量对犬幼虫病的发病率根本没有影响。全球气候变化和壁虱适应新的环境条件将媒介传播的疾病引入新领域。 （C）2008 Elsevier GmbH。版权所有。

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