The weather was quite warm, but Father still had a persistent cough and a shortness of breath.

His health deteriorated in 1863 due to a persistent cough.

The next time, there may be a persistent cough, especially at night.

A chronic, or persistent, cough is one that has lasted more than 8 weeks.

Yesterday is plagued by a persistent cough and feelings of weakness.

Like a man choking down a persistent cough, he could manage for short times.

Rarely, a persistent cough can be caused by a serious health condition.

Symptoms can vary greatly, but they include a persistent dry cough.

A persistent cough, particularly at night, can be a symptom of asthma.

A persistent cough may be a sign of asthma.