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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .When bacteria, like some strains of E.coli, enter the water supply they can threaten public health.
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3 .To prevent such outbreaks, it's useful to know how these microbes behave in their natural environments, rather than just in a petri dish.
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4 .And one such environment is inside the human body.
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5 .In places without access to large sewage systems, bacteria-laden human waste passes into septic tanks.
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6 .There it's broken down before moving on into the groundwater.
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7 .To study how a pathogenic strain of E.coli behaves in this entire system, researchers had to build a replica.
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8 .Which includes an artificial human colon.
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9 .The work is published in Applied and Environmental Microbiology.
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10 .Did the counterfeit colon increase our E.coli comprehension?
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11 .Well, the E.coli did behave differently than the same bacteria in isolation.
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12 .They moved more slowly, and were more likely to form biofilms, slimy microbial communities that are hardier than individuals.
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13 .Which means the bacteria could hang around in the groundwater longer.
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14 .And that's a finding we don't want to flush away.
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15 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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