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Antimicrobial Agents and Chemotherapy, August 1998, p. 2138-2140, Vol. 42, No. 8
0066-4804/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

In Vitro Activities of the Ketolide HMR 3647 against Recent Gram-Positive Clinical Isolates and Haemophilus influenzae

Arthur L. Barry,* Peter C. Fuchs, and Steven D. Brown

The Clinical Microbiology Institute, Wilsonville, Oregon 97070

Received 9 February 1998/Returned for modification 27 April 1998/Accepted 3 June 1998

The ketolide HMR 3647 (previously RU 66647) was evaluated against 2,563 recent clinical isolates of gram-positive pathogens and 200 Haemophilus influenzae isolates. HMR 3647 was active against macrolide-resistant streptococci, including pneumococci, but was not active against macrolide- or lincosamide-resistant staphylococci. Against H. influenzae, the potency of HMR 3647 was similar to that of azithromycin.


* Corresponding author. Mailing address: The Clinical Microbiology Institute, 9725 SW Commerce Circle, Suite A1, Wilsonville, OR 97070. Phone: (503) 682-3232. Fax: (503) 682-2065. E-mail: cmi{at}hevanet.com.


Antimicrobial Agents and Chemotherapy, August 1998, p. 2138-2140, Vol. 42, No. 8
0066-4804/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.



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