Table 2.

Minimum inhibitory concentration (MIC) of Dawson and Preyssler type POMs against the M. catarrhalis strains.

Compound	MIC, μg/ml
	S. aureus (ATCC 29213)	E. faecalis (ATCC29212)	E. coli (ECM1556)
PREYSSLER ANION
P5${\text{W}}_{30}^{14-}$	16	8	>256
DAWSON-BASED ANIONS
P2O7${\text{Mo}}_{18}^{4-}$	>256	>256	>256
As2${\text{Mo}}_{18}^{6-}$	256	>256	>256
P2W15${\text{V}}_3^{6-}$	>256	>256	>256
${\text{AsW}}_{18}^{7-}$	>256	>256	>256
Azithromycin (positive control)*	1	8	0.25

^*MICs for azithromycin were obtained in this study.