No one now knows how easy it would be to turbo-charge an existing human pathogen, or take one that infects another type of animal and assist its passage over the species barrier.
现在没人知道激发一种既存的人体病菌有多么容易，不知道使病菌传染给另一种动物，帮助其跨越物种界限而传播有多么容易。
But no one had ever found a pathogen in an animal sick with the disease.
但没有人发现这种疾病的致病病毒。
On the other hand, when a plant is attacked by an insect, animal or pathogen, it knows.
另一方面，当植物受到昆虫、植物或病菌的侵害时它也知道。
Plant defense signal uses the similar mechanism in the animal immunity system, and it can be initiated by non-parasitic pathogen and mediator.
植物防卫信号的产生类似于动物免疫系统因子的介导，并可由非寄主病原菌或诱导子诱发。
It has been demonstrated that Schistosome is pathogen of schistosomiasis, and the mammalian animal (the end host) and snails (the intermediate host) are their two hosts.
研究表明，血吸虫是血吸虫病的病原体，哺乳类动物(终末宿主)和钉螺(中间宿主)是血吸虫的两个宿主。
Glaucoma is a leading cause of blindness; We need glaucoma animal model to study the pathogen, pathology, prevention, diagnosis and therapy.
青光眼是主要的致盲眼病之一，对于该病病因、病理、预防、诊断和治疗的研究都需要青光眼动物模型。
Glaucoma is a leading cause of blindness; We need glaucoma animal model to study the pathogen, pathology, prevention, diagnosis and therapy.
青光眼是主要的致盲眼病之一，对于该病病因、病理、预防、诊断和治疗的研究都需要青光眼动物模型。
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