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目的了解四川省丹巴县藏族人群旋毛虫感染血清学状况及人群对旋毛虫病防治的知晓情况,为防控工作提供依据。方法对调查人群均采用现场感染因素问卷调查与酶联免疫吸附试验(ELISA)检测血清中旋毛虫抗体。结果受检506人,旋毛虫抗体阳性111人,阳性率为21.94%。阳性者中以2150岁的青壮年为高(17.12%36.04%),男女均易受染。98.20%的阳性者有明确的生食或半生食动物肉史,阳性者中93.69%为半农半牧人群,4.51%为干部,1.80%为学生。问卷调查506人,有生食或半生食猪肉、野猪肉、熊肉、牛肉、羊肉、其他动物肉(野兔、獐子、麂子、狼)者分别为91.70%、16.80%、8.89%、22.13%、4.20%、49.21%。100%的受检者家中砧板生熟不分,37.55%的人群用盛过生肉的碗或器皿直接或未洗干净就盛熟食。84.58%的人群不知生食或半生食动物肉导致旋毛虫病。结论丹巴县藏族人群旋毛虫感染血清学阳性率为国内目前旋毛虫流行区少见,且以青壮年为高,绝大部分患者为半农半牧职业人群,人群普遍保持生食或半生食动物肉饮食习惯是导致感染的关键因素。
Objective To understand the serological status of Trichinella spiralis infection in Tibetan population in Danba County, Sichuan Province and the population’s awareness of the prevention and control of Trichinellosis, so as to provide basis for prevention and control work. Methods Serum Trichinella antibodies were detected by questionnaire and in situ enzyme linked immunosorbent assay (ELISA). The results of the prosecution of 506 people, Trichinella antibody positive 111 people, the positive rate was 21.94%. Among the 2150-year-old young adults who were positive, they were high (17.12% and 36.04%), both men and women were easily infected. 98.20% of the positive persons had a clear history of raw meat or meat of the half-raw animals, 93.69% of them were semi-agricultural and semi-herdsman, 4.51% were cadres and 1.80% were students. 506 people were surveyed, with 91.70%, 16.80%, 8.89% and 22.13% respectively of raw or semi-raw pork, wild pork, bear meat, beef, mutton and other animal meat (hare, roe deer, 4.20%, 49.21%. 100% of the subjects in the home chopping board regardless of raw and cooked, 37.55% of the population Sheng Sheng raw meat bowl or utensils Sheng cooked or not cooked clean. 84.58% of the population do not know that raw or semi-raw animal meat causes trichinosis. Conclusion Serological positive rate of Trichinella spiralis infection in Tibetan population in Danba County is rare in the endemic area of Trichinella in China and is high in young and middle ages. Most of the patients are semi-agricultural and semi-pastoral occupational groups. Eating habits are a key factor in getting an infection.