她读到，这是所有的壁虱传播的疾病中最致命的一种。

It is, she read, the deadliest of all the tick-borne illnesses.

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壁虱可传播危害人类的严重疾病。

Ticks can carry a nasty disease which affects humans.

《牛津词典》

但马铃薯木虱只是传播媒介，真正的病原体尚不清楚。

But the potato psyllid is merely the vector. The actual pathogen is still elusive.

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