Evaluation of the chloride and bromide salts of cetylpyridium for the transportation of sputum in tuberculosis bacteriology.

The usefulness of cetylpyridium chloride and cetylpyridium bromide, at a final concentration of 1% in 1% solution of sodium chloride, for the transportation of sputum in tuberculosis bacteriology, was evaluated. It was found that these compounds did not alter the staining properties nor the viability of the tubercle bacilli for at least 14 days.