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Seroprevalence of circulating Angiostrongylus vasorum antigen and parasite-specific antibodies in dogs from Portugal

機(jī)譯：葡萄牙犬中循環(huán)血管圓管血管血管抗原和寄生蟲特異性抗體的血清陽性率

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摘要

Angiostrongylus vasorum is a nematode that lives in the pulmonary arteries and right cardiac ventricle of domestic dogs and wild canids. It is increasingly being reported in several European countries and North America. This parasite induces inflammatory verminous pneumonia, causing severe respiratory disease in dogs. In some instances, coagulopathies, neurological signs and even death may occur. Scant data are available regarding the occurrence of A. vasorum in Portugal. Therefore, sera of 906 shelter dogs from North to South mainland Portugal were collected. ELISAs to detect A. vasorum circulating antigen and specific antibodies against this parasite were performed. A total of six dogs [0.66?%, 95?% confidence intervals (CI) 0.24-1.43] were positive for both A. vasorum antigen and antibody detection, indicating an active infection, and 12 dogs (1.32?%, CI 0.68-2.30) were A. vasorum antibody-positive only. Regions with antigen- and antibody-positive animals overlapped and were distributed over nearly all sampled areas in the country. This is the first large-scale ELISA-based serological survey for A. vasorum in dogs from Portugal. The endemic occurrence of A. vasorum in dogs from different geographical areas of Portugal is therefore confirmed.
機(jī)譯：血管圓線蟲是一種線蟲，生活在家犬和野生犬科動(dòng)物的肺動(dòng)脈和右心室中。在一些歐洲國家和北美越來越多地報(bào)道它。這種寄生蟲會(huì)引起炎癥性肺炎，從而導(dǎo)致犬嚴(yán)重的呼吸道疾病。在某些情況下，可能會(huì)發(fā)生凝血病，神經(jīng)系統(tǒng)癥狀甚至死亡。關(guān)于葡萄牙的A. vasorum的發(fā)生的數(shù)據(jù)很少。因此，收集了從葡萄牙北部到南部大陸的906只收容犬的血清。進(jìn)行ELISA以檢測(cè)A.vasorum循環(huán)抗原和針對(duì)該寄生蟲的特異性抗體。總共有六只狗[0.66％，95％置信區(qū)間（CI）0.24-1.43]的A. vasorum抗原和抗體檢測(cè)均為陽性，表明是主動(dòng)感染，12只狗（1.32％，CI 0.68-2.30） A. vasorum僅抗體陽性。抗原和抗體陽性動(dòng)物的區(qū)域重疊，并分布在該國幾乎所有采樣區(qū)域。這是首次大規(guī)模的基于ELISA的葡萄牙狗犬血管炎血清學(xué)調(diào)查。因此證實(shí)了來自葡萄牙不同地理區(qū)域的犬中普遍存在血管炎曲霉。

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