Demiaszkiewicz Aleksander W, Polańczyk Grazyna, Pyziel Anna M, Kuligowska Izabela, Lachowicz Jacek
Instytut Parazytologii im. W. Stefańskiego PAN, ul. Twarda 51/55, 00-818 Warszawa.
Wiad Parazytol. 2009;55(4):367-70.
Dirofilariosis is caused by nematodes Dirofilaria repens Railliet et Henry, 1911. This parasitosis is widely distributed in south Europe among dogs, cats and wild carnivorous. It occurs also in Asia and Africa. Adult nematodes D. repens locate in nodules, in subcutaneous or intramuscular connective tissue of dogs. The mosquitoes from genera Anopheles, Aedes and Culex are the intermediate hosts and vectors of mentioned parasites. The finding of 6 adult nematodes belonging to the species D. repens in scrotum under tunica vaginalis, during the castration of the dog, which has never been abroad, tended us to undertake presented studies. In August and September of 2009, 64 genuine dogs age from 1.5 to 12 years originated from 3 kennels in central Poland were examined. Dogs did not show any pathological symptoms of infection. Blood samples were examined for the presence of infection and a number of microfilariae. Species of microfilariae was determined after staining on the basis of morphological characters. In examined blood samples from dogs microfilariae belonging to the species Dirofilaria repens were found. Mean prevalence of infection in all examined kennels was 37.5% and mean intensity 32 microfilariae in 30 microl of blood. Microfilariae of D. immitis were not found in any examined blood samples. The results of presented studies show that native dirofilariosis of dogs caused by D. repens is common in central Poland. The result of our investigations lets us suppose, that the range of occurrence of D. repens will spread significantly towards north Europe.
犬恶丝虫病由1911年的雷耶（Railliet）和亨利（Henry）发现的匐行恶丝虫（Dirofilaria repens）线虫引起。这种寄生虫病在南欧的犬、猫和野生食肉动物中广泛分布。在亚洲和非洲也有发生。成年匐行恶丝虫位于犬的皮下或肌内结缔组织的结节中。按蚊属、伊蚊属和库蚊属的蚊子是上述寄生虫的中间宿主和传播媒介。在一只从未出过国的犬阉割过程中，在阴囊鞘膜下发现6条属于匐行恶丝虫的成年线虫，这促使我们开展本研究。2009年8月和9月，对来自波兰中部3个犬舍的64只年龄在1.5至12岁的纯种犬进行了检查。犬未表现出任何感染的病理症状。对血液样本进行感染检查及微丝蚴数量检测。基于形态学特征染色后确定微丝蚴的种类。在所检查的犬血液样本中发现了属于匐行恶丝虫的微丝蚴。所有检查犬舍的平均感染率为37.5%，每30微升血液中的平均微丝蚴强度为32条。在所检查的任何血液样本中均未发现犬恶丝虫的微丝蚴。本研究结果表明，由匐行恶丝虫引起的犬本土恶丝虫病在波兰中部很常见。我们的调查结果使我们推测，匐行恶丝虫的发生范围将显著向北欧扩展。
