But as a guide, previous research has found that it takes just one to 10 organisms to cause viral hemorrhagic fevers, and 10 to 100 organisms to cause viral encephalitis.

但此前的研究发现，仅1至10个微生物体就可导致病毒出血热，10至100个微生物即可导致病毒性脑炎，这可作为一个参考。

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The dengue virus causes dengue hemorrhagic fever, shock and encephalitis.

登革热病毒导致登革热出血热、休克和脑炎。

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Staining and observing shows that the most pathological changes were interstitial pneumonia and hemorrhagic pneumonia, typical nonsuppurative encephalitis, and neurogangliitis et al.

染色观察显示，病理组织学变化主要表现为间质性肺炎和出血性肺炎、典型的非化脓性脑炎、神经节炎等；

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More effective repellents could play a major role in reducing the death toll from diseases spread by mosquitoes, including malaria, encephalitis, West Nile, dengue, hemorrhagic and yellow fevers.

BBC: NEWS | Science/Nature | Chemical key to mosquito biting