猪圆环病毒2型（PCV2）是引起猪断奶后多系统衰竭综合征等相关疾病的重要病原。

Porcine circovirus type 2 (PCV2) is the primary causative agent of postweaning multisystemic wasting syndrome (PMWS) and other related diseases in pigs.

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由此证明，分离出的病毒是PCV2型。

The ORF2 gene was amplified from PCV2 Shaanxi isolates.

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检测结果表明此次高热病猪圆环病毒二型感染相当严重。

The result indicate in the "Mystery fever syndrome" pigs herds, the PCV2 infection were quite severity.

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