父母移民体验,他们在国内打过疫苗,但是移民体验要求打美国疫苗,如果打,只打第一针吗?主要是父母年纪大了有点担心。
-Ask the doctor who conducts the physical exam. Your parents may request the vaccine waiver if it will result in their health problem. Discuss it with the doctor, anyway.