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2岁男童生吞青蛙治癫痫 体内长裂头蚴寄生虫(图)

2016-04-22 12:05:44   国际在线

(原标题:2岁男童生吞青蛙治癫痫体内长出裂头蚴寄生虫)

公安部门在白云区同和镇一酒楼查获非法销售的蛇类。广州日报记者王燕摄

研究发现广东感染裂头蚴病病例国内最多吃乌梢蛇“田鸡”等蛇蛙类感染风险非常高

“好恶心!2岁男童生吞青蛙治癫痫,体内长出裂头蚴寄生虫!”“十岁男孩频发抽搐,原来是脑内虫子惹的祸”……最近几年,裂头蚴寄生人体致病的新闻不时见诸报端。一项最新研究结果显示,乌梢蛇、虎纹蛙寄生裂头蚴的比例都在一半以上;广东是发病病例报道最多的省份,感染人数是第二位的1.5倍。看到这些触目惊心的案例和数据,你还敢生吃蛇蛙肉、生吞蛇胆吗?

记者昨日获悉,在广东省林业科技创新项目、广东省科技计划项目、广东省野生动物保护与利用公共实验室开放基金等支持下,王付民、龚世平、邓燕忠等专家历经8年调研,完成《广东省食用蛇蛙类曼氏裂头蚴病的流行与防控》一书,首次明确广东是我国人类感染裂头蚴病病例最多的省份,同时,广东人体感染该病的主要原因就是食用或药用乌梢蛇、虎纹蛙等蛇蛙类。科研人员建议街坊改变生吃蛇蛙肉、生吞蛇胆、生饮蛇血等传统陋习;同时建议相关部门进一步加强监管,保证食用蛇蛙卫生安全。

九成乌梢蛇感染裂头蚴

8年前,来自华南濒危动物研究所的龚世平、广东省野生动物救护中心的王付民、邓燕忠等专家走遍大江南北进行调研。统计显示,从1959~2012年,全国有人类感染裂头蚴病病例的报道,总计约1060例,病例最多的省份是广东171例。尤其是2000年以后,广东感染病例持续增加,患者多有进食蛇蛙习惯。

那么哪种蛇传播裂头蚴病的几率最大呢?龚世平介绍,截至2015年3月,在国内9个省市区,对28种共计2424条蛇展开调查研究,发现共有791条蛇感染裂头蚴,感染率达32.63%。其中,乌梢蛇携带裂头蚴的比例最高,达到86.67%;王付民等2014年在广东解剖了52条乌梢蛇,发现50条乌梢蛇中有裂头蚴,感染比例达96.15%。可以说,街坊吃乌梢蛇感染裂头蚴病的风险最大。

近半虎纹蛙是宿主

蛙类同样是老广的最爱,田鸡粥、爆炒田鸡等成为粤菜一部分。龚世平介绍,截至2015年3月,他们在广东等16个省市区,对虎纹蛙、黑斑侧褶蛙、泽陆蛙、牛蛙、沼蛙等15种共40114只蛙进行解剖。统计显示,俗名为“田鸡”的虎纹蛙,裂头蚴平均感染率最高,达49.08%。泽陆蛙的平均感染密度最高,每只泽陆蛙含6.3条裂头蚴。稍微让人放心的是,科研人员在广东境内解剖了77只牛蛙,均未发现寄生裂头蚴。

裂头蚴入脑或引发癫痫偏瘫

裂头蚴寄生在人、蛇、蛙等宿主体内,多数可存活12年,会大量吸收维生素,与宿主争夺营养,还会对宿主组织器官造成损伤,如进入人体中枢神经系统,会引发阵发性头痛、癫痫作、抽搐、偏瘫、肢体麻木、昏迷、喷射性呕吐、视物不清等症状。此外,裂头蚴寄生在人体内,还会直接毒害或损伤人体组织,导致细胞变性坏死等。

广东蛇蛙类消费量十分巨大。据有关报道,2011年对广州、深圳的农贸市场进行调查,每次都能发现7000~93000条蛇、数千只蛙。

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