以粪肠球菌为例：在传统养殖场，67%的细菌具有红霉素抗性；而在新型有机养殖场，抗药性细菌的比例只有18%。

Take Enterococcus faecalis: on the conventional farms 67 percent were resistant to the antibiotic erythromycin while only 18 percent were on the newly organic farms.

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粪肠球菌是顽固性和继发性根管感染中最易分离到的细菌，其主要致病机制之一是形成生物膜。

Enterococcus faecalis (E. faecalis) is most frequent isolated from teeth with failed endodontic treatment. Biofilm-formation is one of the most important pathogenic mechanisms in post-treatment teeth.

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