Expected Results

Positive: Medium becomes alkalinized

(blue) because of the growth of the QUALITY CONTROL organism (Figure 13-2, A). Positive: Escherichia coli

Negative: No growth or growth with Negative: Shigella flexneri no indicator change to blue (Figure 13-2, B).

Figure 13-2

Acetate utilization.

a, Positive.

b, Negative.

Figure 13-3 Any zone of inhibition is positive (Streptococcus pyogenes); growth up to the disk is negative (Streptococcus algalatiae).

Bacitracin Test

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Bacterial Vaginosis Facts

Bacterial Vaginosis Facts

This fact sheet is designed to provide you with information on Bacterial Vaginosis. Bacterial vaginosis is an abnormal vaginal condition that is characterized by vaginal discharge and results from an overgrowth of atypical bacteria in the vagina.

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