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目的探索分析广州管圆线虫疫源地轻重程度及计算方法。方法取浙江省温州、苍南、永嘉、乐清市以及福建省闽侯、长乐、宁德市7个广州管圆线虫疫源地中间宿主(福寿螺)的感染率及阳性者平均含虫数之乘积为当地的感染指数。结果7个疫源地中间宿主福寿螺的感染率分别为10.59%(9/85)、60.74%(181/298)、34.96%(79/226)、32.90%(76/231)、57.50%(184/320)、40.00%(82/205)和17.65%(12/68);感染度分别为6.57、183.54、121.73、93.45、276.36、76.08和12.65。结论以感染指数>75、30～75、5～29、<5和0分别为超高度、高度、中度、低度和非疫源地。
Objective To explore and analyze the severity and the calculation method of Angiostrongylus cantonensis in Guangzhou. Methods The infection rates of the intermediate host (snails) of seven Anoplophora ganudoensis from Wenzhou, Cangnan, Yongjia and Yueqing in Zhejiang Province, and Minhou, Changle and Ningde in Fujian Province were determined by the local product The infection index. Results The infection rates of the intermediate host, Fujipengjiao in seven epidemic areas were 10.59% (9/85), 60.74% (181/298), 34.96% (79/226), 32.90% (76/231) and 57.50% /320)40.00%(82/205)% and 17.65% (12/68), respectively. The infection rates were 6.57, 183.54, 121.73, 93.45, 276.36, 76.08 and 12.65, respectively. Conclusion Infection index> 75, 30-75, 5- 29, <5 and 0 were superhigh, high, moderate, low and non-epidemic areas respectively.