Infection of PRRSV can not only damage the immunity of the swine but also cause secondary affection or complicating disease involved other pathogenic microorganism, which exacerbates the situation.
PRRSV感染能降低猪体免疫力，常引起其他病原微生物的继发或并发感染，加重病情。
Infection of PRRSV can not only damage the immunity of the swine but also cause secondary affection or complicating disease involved other pathogenic microorganism, which exacerbates the situation.
PRRSV感染能降低猪体免疫力，常引起其他病原微生物的继发或并发感染，加重病情。
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