养在户外笼子里的鸟对空气传播的病毒有免疫力。

Birds in outside cages develop immunity to airborne bacteria.

《柯林斯英汉双解大词典》

这里可能有许多靠空气传播的病原体携带病毒。

There would have to be some sort of airborne pathogens that spread the virus.

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答：结核病是通过空气传播的一种传染性肺病。

A: Tuberculosis (TB) is a contagious lung disease that spreads through the air.

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But it can be acquired in the air, from patients that are from- from other individuals that are infected.

天花会通过空气传播,通过病人和其他感染者呼出的空气传播

耶鲁公开课 - 生物医学工程探索课程节选