Generally speaking, the incubation period or the premonitory symptoms duration is shorter, the symptom is more serious, the mortality rate is higher. 一般来说,潜伏期或前驱症状持续时间越短,症状越严重,死亡率越高。
Cough Variant Asthma, also known as Occult Asthma, is one of the special types of Asthma, also considered as a premonitory symptom of typical asthma, a common disease in Pediatrics. 咳嗽变异性哮喘(coughvariantasthma,CVA)又称为隐匿型哮喘或者是咳嗽性哮喘,是哮喘的一种特殊类型,也可认为是典型哮喘的前驱表现,是儿科的常见病。