Clinical features and management of two cases of Streptococcus milleri chest infection.

We report 2 cases of Streptococcus milleri infection of the lung. One patient, a 58-year-old woman, presented with a large abscess in a previously normal lung, the other, a 53-year-old man, had a secondary infection of lung previously scarred by tuberculosis and surgery. Both patients had severe dental caries. Four weeks of therapy with high dose antibiotics and physiotherapy were required. Invasive techniques were needed to isolate the organism.