Methods The blood enrichment medium was made of tomatoes juice and chocolate agar and 168 blood samples were enriched by using the medium.

方法以西红柿汁肉汤和巧克力琼脂制成双相培养基，和常规培养基分别对16 8例血标本进行振摇培养。

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Method: Based on enrichment culture, blood plate separation, the flask culture and exclusive circle of methods such as oil.

方法：富集培养、血平板分离、摇瓶培养和排油圈测定。

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