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美国一些地方在鱼的身上发现了奇形怪状的癌性肿瘤.惊人的发病率已使一部分科学家相信这种病是传染性的.科学家还担心吃这些鱼对人类将有潜在的危险.科学家正在设法确定该问题的严重程度及其起因. 目前,钓鱼运动爱好者和吃鱼的人还无法知道哪些水域有受污染的鱼. 科学家已清醒地意识到这一问题的严重性.美国鱼类和野生动物保护部门将调查全国各地的河流,进一步寻找该病起因的证据.
Grotesque cancerous tumors have been found on fish in some parts of the country and alarming rates have led some scientists to believe the disease is contagious and scientists are also worried about the potential dangers of eating these fish for humans.Scientists are trying to determine The extent of the problem and its causes, the current fishing enthusiasts and people who eat fish still can not know which waters have contaminated fish.Scientists have been clearly aware of the seriousness of the problem.Fish and wildlife Protection authorities will investigate rivers across the country to further look for evidence of the cause of the disease.