达内尔用钩端按住蛇头，把蛇放在垫子上，赤手！

Darnell sets the snake on a mat and with the end of the hook, pins down its head - all without any gloves.

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钩端螺旋体导致严重的黄疸、肾衰竭和肺出血。

Leptospirosis causes severe jaundice, kidney failure and bleeding in the lungs.

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目的研究湖南省洪涝灾害高发地区钩端螺旋体病的流行因素。

Objective to study the prevalence factors for leptospirosis in flood-hit areas in Hunan Province.

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