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第1段

1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?

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2 .Next time you hit the beach, dig your feet into the sand.

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3 .And consider that your toes might be mingling with the wonder drug of the future:

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4 .an antibiotic strong enough to combat MRSA, even anthrax.

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5 .That's what researchers may have found when they dug a few feet into beach sand at Gaviota State Park, near Santa Barbara: a previously undescribed species of Streptomyces bacteria,

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6 .which pumps out an antibiotic called anthracimycin.

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7 .As you might have guessed, the old-school antibiotic streptomycin also comes from a strain of Streptomyces bacteria.

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8 .But researchers say this newly discovered compound is structurally and chemically unique from that other mycin and from all other antibiotics,

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9 .meaning it could launch a whole new class of drugs.

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10 .Early tests suggest anthracimycin is 25 to 40 times more potent than today's antibiotics at killing anthrax and other germs, in petri dishes at least.

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11 .And it wiped out MRSA in 90 percent of infected mice.

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12 .The results appear in the journal Angewandte Chemie.

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13 .There's still no evidence the drug works in humans, and this study's researchers say they won't be involved in human trials.

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14 .But they're hoping pharmaceutical investigators won't be resistant to the idea.

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15 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Christopher Intagliata.

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