卡他

xǔ duō bìng rén gǎn mào hòu shuō yǒu chí xù de kǎ tā zhèng zhuàng

许多病人感冒后说有持续的卡他症状。

After a cold, many patients complain of persistent catarrh.

zhěn duàn tōng cháng zài kǎ tā qī zhōng liǎo qián shàng bù néng zuò chū

诊断通常在卡他期终了前尚不能作出。

The diagnosis is usually not made until the end of the catarrhal stage.