The SPCA has special clinics for sick animals.

SPCA为患病的动物设有专门的诊所。

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Sick animals were immediately quarantined and soon culled.

病畜迅速得到检疫并立刻被扑杀。

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A vet (a special doctor for animals) takes care of sick animals.

兽医(动物的专门医生)照看患病的动物。

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It attacked young, old or sick animals that were not much of a threat.

VOA: special.2009.09.01

The animals become sick from it and humans become sick from it.

无论是动物还是人的健康都深受其害

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The researchers modelled the effect of removing sick animals on the disease's prevalence in a small population.

BBC: Cull 'cannot save' Tasmanian devil

SeaWorld says it supports wildlife conservation, research and education and has rescued thousands of stranded and sick animals.

CNN: Free the killer whale

As part of the trial cull, researchers have trapped and euthanised sick animals two to five times a year from an isolated population in the south-east of Tasmania.

BBC: Cull 'cannot save' Tasmanian devil