Use Erythromycin antibiotic sensitivity disks to test the effect of a particular antibiotic on different bacteria cultures. You get a disposable vial of 50 antibiotic sensi-discs, 1/4" in diameter, each containing 15 mcg Erythromycin. Order an optional disc dispenser to dispense each individual antibiotic sensitivity disk more easily.
This item must be refrigerated.
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