雨后遇到这种大蜗牛，别碰！赶紧远离！

渠县融媒

近日，广东多地遭遇持续强降雨天气，随着大雨逐渐停止，让人毛骨悚然的“大蜗牛”又又又出现了。

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到底有多大？来看震撼对比▼

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还有不少人出于好奇，徒手抓了起来▼

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网友纷纷提醒：千万别碰！这是非洲大蜗牛！有毒！

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这些大蜗牛是什么来头？怎么突然冒出来这么多？对人体有没有危害？家中发现了又该怎么办呢？一起来看↓

非洲大蜗牛携带多种致病菌

非洲大蜗牛，又名褐云玛瑙螺，是我国首批 16 种外来入侵物种之一，因其不能在水中存活，一旦下大雨，便会从躲藏处爬出。

图源：深圳卫健委

它喜欢吃农作物、林木、蔬菜和花卉等植物，可危害 500 多种作物，是国家进出境二类检疫性有害生物。

听到外来入侵物种，大家是不是都警惕起来了？那么，如何区分非洲大蜗牛和中国本土的蜗牛呢？研究人员称，通常壳长超过成人三指宽的是非洲大蜗牛。

为何雨后大量出现？

非洲大蜗牛平常只敢在草丛中潮湿处活动，到路上可能会干死、晒死。雨后环境潮湿它才敢到处爬。

1

“杀伤力”极大，

一只身上就有上百条寄生虫

海南医学院第一附属医院感染科副主任医师王月平介绍，非洲大蜗牛身上携带多种细菌，如绿脓杆菌、沙雷氏菌等，用手去摸可能会引起皮炎、皮肤瘙痒、肿胀等，严重则会入侵人体的免疫系统，出现发热、头疼，最后导致嗜酸性脑膜炎。

不仅如此，它们的黏液、粪便里，也携带很多寄生虫和病原菌，尤其是广州管圆线虫，一只非洲大蜗牛身上，可能有上百条这种寄生虫。

广州管圆线虫会往人体的中枢神经或脑脊液里“钻”，一旦感染，患者会不断发热、头痛，引发脑膜炎，重则危及生命。

2

这么做容易感染寄生虫

人可以通过以下途径感染广州管圆线虫：

· 生食或半生食被感染的螺肉；

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不过，广州管圆线虫尽管可怕，但只要我们做到以下几点，就能远离它：

· 不食用生螺肉；

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http://www.w3.org/1999/xhtml"},"para",{"tagName":"section","attributes":{},"namespaceURI":"http://www.w3.org/1999/xhtml"},"para",{"tagName":"section","attributes":{"style":"margin-left: 8px;margin-right: 8px;box-sizing: border-box;text-align: justify;font-size: 16px;color: rgb(62, 62, 62);","data-pm-slice":"0 0 []"},"namespaceURI":"http://www.w3.org/1999/xhtml"},"para",{"tagName":"section","attributes":{"style":"text-align: center;justify-content: center;display: flex;flex-flow: row;margin: 10px 0px;width: 100%;align-self: flex-start;border-style: solid;border-width: 1px;border-color: rgb(43, 179, 241);padding: 15px;height: auto;position: static;box-sizing: border-box;"},"namespaceURI":"http://www.w3.org/1999/xhtml"},"para",{"tagName":"section","attributes":{"style":"text-align: justify;width: 100%;box-sizing: border-box;"},"namespaceURI":"http://www.w3.org/1999/xhtml"},"para",{"tagName":"p","attributes":{"style":"margin: 0px;padding: 0px;box-sizing: border-box;line-height: 1.75em;"},"namespaceURI":"http://www.w3.org/1999/xhtml"}]">· 接触非洲大蜗牛后注意清洁双手；

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不慎踩到 及时清洗

非洲大蜗牛一次可产下 30 到 700 粒卵，繁殖速度很快，雨后将大量“现身”，如不小心踩到，要及时做好清洗工作。家里被“污染”的蔬菜水果等也必须处理干净。

如在小区发现数量较多的“大蜗牛”，可以找物业公司进行处理，或者找专业的杀虫公司处理。

如在家里发现少数蜗牛，可用家中的食盐处理，蜗牛被撒食盐后，软体部分会融化成水而死亡。注意，清理时请做好防护措施，比如戴上手套、口罩、护目镜等，以防止直接接触诱发感染。

近期，南方的雨会一直连轴转，17日~19日、20日~22日、23日~24日，四轮降雨将无缝衔接。

国家应急广播提醒，降雨过后，若路遇http://www.w3.org/1999/xhtml"},"para",{"tagName":"section","attributes":{"style":"box-sizing: border-box;"},"namespaceURI":"http://www.w3.org/1999/xhtml"},"para",{"tagName":"p","attributes":{"style":"text-align: center;margin: 0px;padding: 0px;box-sizing: border-box;"},"namespaceURI":"http://www.w3.org/1999/xhtml"}]" style="color: rgba(0, 0, 0, 0.9); font-size: 16px; letter-spacing: 0.034em; font-family: mp-quote, -apple-system-font, BlinkMacSystemFont, Arial, sans-serif;" data-mpa-action-id="maqgz5oxbrk">非洲大蜗牛，不要徒手触摸，也不能当成宠物饲养，更不要抱有侥幸心理去尝鲜。不慎接触后，一定要做好清洁，出现异常情况务必及时就医。

来源：科普中国