[Investigations on mycoplasma attacks in patients with chronic bronchitis (author's transl)].

In 50 patients with chronic bronchitis, and additional attack by mycoplasma was found in at least 4 cases. This percentage corresponds approximately to the statements in the literature. In patients with mycoplasma in the sputum, radiologically signs of a bronchitis and peribronchitis were found which, for the short duration of the symptoms are unusual for a chronic bronchitis. Purulent sputum was only observed after several days in the many relapses which ran a course similar to a virus infection.