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本调查于1970～1973年,采用快速显微镜凝集试验(RMAT)在24个国家中共计检查了14,709只狗,结果发现它们的钩体抗体有10个血清型,其中大多数流行的是黄疸出血和犬型钩体。阳性率如下:秘鲁26.3%、智利18.4%、土耳其17.4%、澳地利16.0%、朝鲜15.0%、中国(台湾省)11.4%、日本9.8%、巴西7.7%、美国5.5%、英国4.5%、意大利3.5%、德国2.0%及加拿大0.4%。然而在澳大利亚、多米尼加、厄瓜多尔、埃塞俄比亚、裴济群岛、印度尼西亚、伊朗、马尔他、菲律宾、瑞典与泰国的检查结果为阴性。不同洲的阳性率为:南美洲11.1%、亚
The survey examined a total of 14,709 dogs in 24 countries using the Rapid Microscope Agglutination Test (RMAT) from 1970 to 1973 and found that they had 10 serogroups of leptospira antibodies, most of which were bleeding from the jaundice and Dog-type hook body. The positive rates are as follows: Peru 26.3%, Chile 18.4%, Turkey 17.4%, Australia 16.0%, North Korea 15.0%, China (Taiwan) 11.4%, Japan 9.8%, Brazil 7.7%, United States 5.5%, United Kingdom 4.5% Italy 3.5%, Germany 2.0% and Canada 0.4%. However, in Australia, the Dominican Republic, Ecuador, Ethiopia, the Fiji Islands, Indonesia, Iran, Malta, the Philippines, Sweden and Thailand had negative results. The positive rates in different continents are: South America 11.1%, Asia