Sputum

I am coughing up sputum.

I'm coughing up sputum.

Finding TB in young children, in particular, poses a hurdle because youngsters often can’t produce a sputum sample necessary to diagnose the disease.

In the early 1890s the work in the laboratory consisted of postmortems, urinalyses, and examination of sputums.

At the U.S. Centers for Disease Control and Prevention in Atlanta, the boy’s sputum sat for a month, waiting for its turn in a slow process of antibody-matching analysis.