然而，本周对最新H1N1病毒来源的研究发现再度引起对于工厂化养猪场对健康的影响的关注，成千上万的猪被密集圈养在一起，并由此运往各地。

Still, this week's findings about the new H1N1 virus' ancestry also has reignited concerns about the health impacts of.

youdao

然而，本周对最新H1N1病毒来源的研究发现再度引起对于工厂化养猪场对健康的影响的关注，成千上万的猪被密集圈养在一起，并由此运往各地。

Still, this week's findings about the new H1N1 virus' ancestry also has reignited concerns about the health impacts of.

youdao