Is asthma an example of upper respiratory infection?

No.: Asthma is a disease of the lower respiratory tract - the bronchi. It is also, usually, not an infection, but can be triggered by one.

No: Asthma is not an example of any infection, upper or lower respiratory. And asthma exacerbation can be triggered by a respiratory infection, but asthma is not an infection.

No...: Although the symptoms may be similar, asthma is due to recurrent episodes of bronchospasm and airway inflammation. Upper respiratory infections can trigger asthma exacerbations in susceptible patients.