In Vitro Activity of ABT-773, a New Ketolide, against Recent Clinical Isolates of Streptococcus pneumoniae , Haemophilus influenzae , and Moraxella catarrhalis

Abstract
The in vitro activity of ABT-773 was evaluated against Streptococcus pneumoniae , Haemophilus influenzae , and Moraxella catarrhalis isolates. ABT-773 was the most active antimicrobial tested against S. pneumoniae . ABT-773 and azithromycin were equivalent in activity against H. influenzae and M. catarrhalis and more active than either clarithromycin or erythromycin.
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