Detection of human coronavirus strain HKU1 in a 2 years old girl with asthma exacerbation caused by acute pharyngitis.

Respiratory viral infections can trigger asthma attack which may lead to sever morbidity. In this report, using molecular methods, we show the chronological association between human coronavirus--HKU1 infection and asthma exacerbation in a two years and seven months old asthmatic girl who was not under treatment and was otherwise healthy.