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目的了解小兴安岭部分林区莱姆病在人群中的流行和感染状况。方法采用酶联免疫吸附试验(ELISA)法检测598例小兴安岭林区人群的菜姆病抗体水平,对血清菜姆病抗体IgG阳性者进行流行病学调查。结果血清流行病学调查显示:598例调查人群中,莱姆病抗体IgG总阳性率为33.9%,滨南林场感染率最高,达35.7%,其次为罕达汽,感染率为35.6%,七二七最低,为30.5%;男性血清262份,女性血清236份,莱姆病抗体IgG阳性率分别为34.3%与33.4%;年龄分组,莱姆病抗体IgG阳性率差异无统计学意义(P>0.05),40~49岁年龄段感染率最高,为37.2%;患病人群血清119份,莱姆病抗体IgG阳性率为50.4%,明显高于调查人群莱姆病抗体IgG总阳性率。结论小兴安岭林区是莱姆病的重要自然疫源地,林区人群莱姆病的感染相当严重,应引起重视。
Objective To understand the prevalence and infection status of Lyme disease in some areas of the Little Xing’an Mountains. Methods The levels of Lemutin antibodies in 598 Xiaoguxingling forest areas were detected by enzyme-linked immunosorbent assay (ELISA), and the epidemiological investigation was conducted on patients with positive serum IgG antibody. Results Serum epidemiological survey showed that the total IgG positive rate of Lyme disease was 33.9% in 598 surveyed patients, the highest infection rate in Bannan forest was 35.7%, followed by QHD, the infection rate was 35.6% The lowest was 27.5% in seventy-seven, with 262 sera in males and 236 sera in females. The positive rates of IgG antibodies against Lyme disease were 34.3% and 33.4%, respectively. There was no significant difference in IgG positive rate of Lyme disease among age groups > 0.05). The highest infection rate was 37.2% in the age group of 40-49 years old. The 119 cases of serum of 119 patients were infected with Lyme disease. The positive rate of IgG was 50.4%, which was significantly higher than the positive rate of Lyme disease IgG in the surveyed population. Conclusion Small Xing’anling forest area is an important natural foci of Lyme disease. The infection of Lyme disease in the forest area is rather serious and should be paid more attention.