| 1. | Variation occurs within species, and TSV-resistant strains of shrimp have been developed.
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| 2. | It is expected to prolong the lives of patients with drug-resistant strains.
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| 3. | The Pittsburgh clone or other resistant strains may already have spread elsewhere,
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| 4. | The resistant strains were apparently not transmitted, and all three patients survived.
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| 5. | Treating patients with resistant strains is far more expensive, the report said.
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| 6. | A blight-resistant strain of arabica was introduced by French experts in 1992.
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| 7. | Drug-resistant strains also became more common, a result of inadequate TB treatment.
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| 8. | Vancomycin-resistant strains of Enterococcus bacteria ( VRE ) are becoming increasingly common.
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| 9. | Patients with drug-resistant strains are at greater risk of developing full-blown AIDS.
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| 10. | Few countries report the appearance of antibiotic-resistant strains of deadly bacteria.
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