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Unformatted text preview: This is the infectious agent. 7. Prepare a sample of contaminated water for each antibacterial given: penicillin, ampicillin, and colistin sulfate. 8. Put one antibacterial into each contaminated water sample and repeat steps 1 through 3 with these samples. 9. Examine each new gram stained sample to see if the infectious agent is, or is not, present. 10. After finding the sample that no longer has the infectious agent, take note of which antibacterial was mixed with the water sample. This antibacterial will be used to stop the infection....
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- Spring '11