Centro de Investigación en Parasitología Regional, Universidad Juan Agustín Maza, Guaymallén, Mendoza, Argentina.
Departamento de Parasitologia, Facultad de Farmacia, Universidad de Valencia, Av. Vicent Andres Estelles s/n, Burjassot, 46100, Valencia, Spain.
Parasitol Res. 2024 Oct 9;123(10):345. doi: 10.1007/s00436-024-08367-y.
Canine dirofilariosis is a mosquito-borne zoonotic disease largely caused by Dirofilaria immitis. Mainly present in temperate, semitropical, and tropical areas, its worldwide emergence and spread are causing concern. In Argentina, most cases have been reported in humid regions of the center and northeast of the country. The occurrence of canine dirofilariosis in an arid environment of western Argentina was investigated by blood smears, microhematocrit tube test, and Knott's technique. Association and odds ratio were determined in relation to dog characteristics. Thirty-three dogs (51.6%) had microfilariae, morphologically identified as D. immitis. Knott's test was more sensitive in detecting the positive animals. The odds of harboring microfilariae were 12, 29, and 66 if the dog was male, adult (three to 6 years old), or older (> 7 years old), respectively. The prevalence of canine dirofilariosis herein reported outstands among the highest in Argentina and extends to the west its geographic distribution in the country. Far from being an exception, this epidemiological situation might reflect similar circumstances in several arid locations in the west and center of Argentina. Being this a disease of recent appearance in the region, both veterinarians and physicians should be aware of its potential to cause disease in animals and humans.
犬心丝虫病是一种由犬恶丝虫引起的蚊媒传播的人畜共患病。主要发生在温带、亚热带和热带地区，其在全球的出现和传播令人担忧。在阿根廷，大多数病例报告于该国中部和东北部的湿润地区。本研究通过血涂片、微红细胞比容管试验和诺特技术调查了阿根廷西部干旱环境中犬心丝虫病的发生情况。对与犬特征相关的关联和优势比进行了确定。33 只狗（51.6%）有微丝蚴，形态上鉴定为犬恶丝虫。诺特试验对检测阳性动物更敏感。如果狗是雄性、成年（3 至 6 岁）或老年（>7 岁），则携带微丝蚴的几率分别为 12、29 和 66。本报告的犬心丝虫病患病率在阿根廷是最高的之一，并将其地理分布扩展到该国西部。这种情况并非例外，这种流行病学情况可能反映了阿根廷西部和中部几个干旱地区的类似情况。由于该病在该地区是新近出现的，兽医和医生都应该意识到它在动物和人类中引起疾病的潜力。
