【中文原文】

我打过流感针了,我对猪流感免疫吗?

　　　　　　不能,目前还没有猪流感疫苗.有可能季节性的流感疫苗会对H3N2型猪流感病毒提供部分抗体.但在加州出现的是H1N1型毒株.与人类流感H1N1毒株区别很大.先前接种过人型H1N1流感疫苗是否能部分抵御此次爆发的猪型H1N1病毒,目前不得而知. 然而,CDC已经从一位被感病人身上提取出的猪流感病毒里开发出一个"疫苗种",并已启动一旦需要立即开发的程序.是否需要在下一个流感季节到来前批量生产是个大问题.

【参考译文】　

　　It's possible that the seasonal flu vaccine might provide partial protection against H3N2 swine flu bugs. But the strain that appeared in California is the H1N1 swine flu strain. It is very different from the H1N1 human flu strain included in the seasonal flu vaccine.

　　It's not known whether previous infection with human type A H1N1 flu might provide partial protection against the type A H1N1 swine flu in the current outbreak.

　　However, the CDC has made a "vaccine seed" from swine flu isolated from an infected person, and has begun the process of developing a vaccine should the need arise. Whether a vaccine could be produced in quantity by next flu season is a huge question.