Bacteremia caused by a beta-lactamase producing strain of Branhamella catarrhalis. A case report.

A case of Branhamella catarrhalis bacteremia without known infectious focus in a granulocytopenic patient is reported. There were no unusual clinical features of bacteremia, such as purpura, in this case which distinguished it from bacteremia due to other bacteria. The isolated strain was beta-lactamase producing. The patient recovered uneventfully on antibiotics; at the same time, however, the bone marrow was also normalized.