Antimicrobial Ointments and Methicillin-Resistant Staphylococcus Aureus USA300

*Community-acquired infections were determined on the basis of patients' histories according to Centers for Disease Control and Prevention (Atlanta, GA, USA) guidelines (www.cdc.gov/mrsa/diagnosis/index.html).

Table 2.  Bacitracin and neomycin susceptibility of MRSA USA300 and other MRSA isolates*

Bacitracin/neomycin	MRSA USA300 (MICs of bacitracin, neomycin, and polymyxin B)†			Other MRSA
	Kyoto University Hospital	Nagoya Medical Center	ATCC type strains
R/R	9 (400, 128, 200–400)	0	BAA1717 (400, 128, 400)	0
R/S	0	1 (400, 0.25, 400)		0
S/R	0	0		11
I/S	0	0		1
S/I	0	0		132
S/S	9 (6.25–12.5, 0.25, 400)	0	BAA1556 (6.25, 0.25, 400)	96
Total	18	1	2	240

*MRSA, methicillin-resistant Staphylococcus aureus; ATCC, American Type Culture Collection (Manassas, VA, USA); R, resistant; S, susceptible; I, intermediate resistance.
†MICs are expressed as units/mL for bacitracin and polymyxin B and in μg/mL for neomycin.

Authors and Disclosures

Masahiro Suzuki, Kazuhiro Yamada, Miki Nagao, Etsuko Aoki, Masakado Matsumoto, Tatsuya Hirayama, Hiroaki Yamamoto, Reiji Hiramatsu, Satoshi Ichiyama, and Yoshitsugu Iinuma

Aichi Prefectural Institute of Public Health, Nagoya, Japan (M. Suzuki, K. Yamada, M. Matsumoto, T. Hirayama, H. Yamamoto, R. Hiramatsu); Kyoto University Hospital, Kyoto, Japan (M. Nagao, S. Ichiyama, Y. Iinuma); Kyoto University, Kyoto (M. Nagao, S. Ichiyama, Y. Iinuma); National Hospital Organization Nagoya Medical Center, Nagoya (E. Aoki); and Kanazawa Medical University, Kahoku, Japan (Y. Iinuma)

Address for correspondence
Masahiro Suzuki, 7-6 Nagare, Tsuji-machi, Kita-ku, Nagoya 462-8576, Japan; email: masahiro_4_suzuki@lg.jp