The vaccine may require a second dose three weeks after the first, and it may take another two weeks for the body to build up full immunity, the C.D.C. says.
疾控中心工作人员告知，注射过第一针疫苗的人，需要隔两周再去注射第二针，再经过两周时间，机体才能完全建立起猪流感免疫机制。
Always make any diet change very slowly to allow your animal's system to adjust, and start with half the recommended dose of each supplement and build up over the course of 3-5 days.
务必任何饮食变化非常缓慢，让您的动物的系统调整，并开始与每个补充推荐剂量的一半，并建立在3 - 5天的过程中。
Always make any diet change very slowly to allow your animal's system to adjust, and start with half the recommended dose of each supplement and build up over the course of 3-5 days.
务必任何饮食变化非常缓慢，让您的动物的系统调整，并开始与每个补充推荐剂量的一半，并建立在3 - 5天的过程中。
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