Persistent Cough

Among patients with tuberculosis in high-incidence countries, more than 80% did not report persistent cough and more than 60% did not report cough all together, according to results published in The Lancet Infectious Diseases.

A 35-year-old high school teacher presents with a chronic cough of 6 months’ duration. The cough is described as dry, irritating and persistent. He has tried every over-the-counter cough medicine that he could find to no avail.