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Antibiotic Susceptibility Of Black-Pigmented Bacteroides Isolates From The Human Oral Cavity, Linda Jean Laatsch, Paul R. Hohenfeldt, William L. Kos

Biomedical Sciences Faculty Research and Publications

The minimal inhibitory concentrations of penicillin and six other antibiotics were determined for 66 oral black-pigmented Bacteroides isolates by using the National Committee for Clinical Laboratory Standards proposed standard agar dilution technique. These results plus iodometric determination of β-lactamase activity showed that oral isolates of black-pigmented Bacteroides are remaining relatively susceptible to commonly used antibiotics.