Live vaccines, such as oral poliovirus vaccine; yellow fever vaccine; and measles, mumps and rubella vaccines, do not contain thiomersal, because it would kill the immunizing component.
一些活疫苗，比如口服脊髓灰质炎疫苗；黄热病疫苗；麻疹，腮腺炎和风疹疫苗并不含硫柳汞，因为后者会杀死免疫成分。
Vaccines for measles-mumps-rubella and varicella, or chicken pox, are effective in extremely preterm infants, even though preemies' immune systems are not as developed as full-term babies.
麻疹、腮腺炎、风疹和水痘疫苗对极度早产的婴儿有效，即使早产儿的免疫系统发育的并不像足月产婴儿一样。
Vaccines for measles-mumps-rubella and varicella, or chicken pox, are effective in extremely preterm infants, even though preemies' immune systems are not as developed as full-term babies.
麻疹、腮腺炎、风疹和水痘疫苗对极度早产的婴儿有效，即使早产儿的免疫系统发育的并不像足月产婴儿一样。
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