His cough was caused by an infection of the upper respiratory tract.

他的咳嗽是由上呼吸道感染导发的。

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They may also irritate the upper respiratory tract, causing coughing, choking, and general debility.

这些也能刺激上呼吸道，引起咳嗽、窒息和全身虚弱感。

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Objective To observe the potency of ribavirin used with nose drops to cure infants'acute infection of the upper respiratory tract.

目的观察用病毒唑滴鼻治疗婴幼儿急性上呼吸道感染的疗效。

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You've got the flu, you've got influenza in your upper respiratory tract, your cells are making more influenza.

你就此得了流感,你得了上呼吸道流感,你的细胞正在制造更多流感病毒

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They had had fewer upper respiratory tract infections by the age of one than the other group.

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Proper levels can reduce the risk of stress fractures, inflammatory injuries and upper respiratory tract infections.

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At my first M and M as a medical student, I heard the story of a patient who had received antibiotics for an upper respiratory tract infection.

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