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This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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During a physical exam, doctors pick up a lot from their patients.
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Including that patient's bacteria.
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To keep infections from spreading, physicians try to always wash their hands between exams.
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But they don't always scrub their stethoscopes.
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To see just how much bacteria these instruments gather, doctors examined 71 patients, using sterile stethoscopes and gloves.
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After each exam, researchers collected samples from the stethoscope's surface and tube, as well as four parts of the physician's gloved hands: the fingertips, backs and two locations on the palm.
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The fingertips became by far the most bacterially contaminated.
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But the runner-up was the stethoscope's surface, which gathered more microbes than the palms or the backs of the hands.
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The study is in Mayo Clinic Proceedings.
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Although fingertips picked up more than five times as much bacteria as stethoscopes did, doctors reduce that contamination before seeing the next patient by cleaning their hands.
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According to this study's authors, stethoscopes should get the same treatment.
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Then the only thing to fear is the stethoscope's icy temperature.
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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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显示原文 =This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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显示原文 =During a physical exam, doctors pick up a lot from their patients.
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3 / 14
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显示原文 =Including that patient's bacteria.
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4 / 14
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显示原文 =To keep infections from spreading, physicians try to always wash their hands between exams.
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5 / 14
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显示原文 =But they don't always scrub their stethoscopes.
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6 / 14
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显示原文 =To see just how much bacteria these instruments gather, doctors examined 71 patients, using sterile stethoscopes and gloves.
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7 / 14
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显示原文 =After each exam, researchers collected samples from the stethoscope's surface and tube, as well as four parts of the physician's gloved hands: the fingertips, backs and two locations on the palm.
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8 / 14
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显示原文 =The fingertips became by far the most bacterially contaminated.
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9 / 14
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显示原文 =But the runner-up was the stethoscope's surface, which gathered more microbes than the palms or the backs of the hands.
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10 / 14
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显示原文 =The study is in Mayo Clinic Proceedings.
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11 / 14
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显示原文 =Although fingertips picked up more than five times as much bacteria as stethoscopes did, doctors reduce that contamination before seeing the next patient by cleaning their hands.
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12 / 14
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显示原文 =According to this study's authors, stethoscopes should get the same treatment.
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13 / 14
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显示原文 =Then the only thing to fear is the stethoscope's icy temperature.
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14 / 14
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显示原文 =Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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- 单句循环：关
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- 单句循环：∞