It is concluded that the apoptosis of lymphocytes in lymph nodes of piglets was obviously affected by PCV-2 infection alone.

结果表明，PC V - 2单独感染仔猪能导致淋巴结中淋巴细胞的凋亡，这可能是PCV - 2感染引起仔猪免疫抑制的机理之一。

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These results are useful to the study on the molecular mechanism of virulent difference between PCV-1 and PCV-2 and the development of anti-PCV drugs.

这些结果对PCV-1和PCV-2毒力差异的分子机制研究具有一定的借鉴意义，同时可为抗PCV药物的研发提供一定的理论依据。

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Porcine reproductive and respiratory syndrome(PRRS) and porcine circovirus type 2(PCV-2) are two immunosuppressive diseases which are greatly endangering swine in recent years.

猪繁殖障碍与呼吸道综合征（PRRS）和猪圆环病毒2型（PCV-2）是近几年来严重危害猪群的两大免疫抑制性疾病。

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Porcine reproductive and respiratory syndrome(PRRS) and porcine circovirus type 2(PCV-2) are two immunosuppressive diseases which are greatly endangering swine in recent years.

猪繁殖障碍与呼吸道综合征（PRRS）和猪圆环病毒2型（PCV-2）是近几年来严重危害猪群的两大免疫抑制性疾病。

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