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。

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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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One of Dr Murch's co-authors, Dr Andrew Wakefield, went on to raise fears of a link between the combined jab and autism and recommended the use of single measles, mumps and rubella vaccines instead.

BBC: Parents urged to opt for MMR

It was written by the now-infamous Dr. Andrew Wakefield, who argued that there was a link between the measles, mumps and rubella vaccines, and autism.

CNN: Opting out of vaccinations could get tougher in California

The ruling came from a panel of "special masters" who began hearing three test cases in 2007 involving children with autism -- a disorder that their parents contend was triggered by the vaccine against measles, mumps and rubella combined with vaccines containing thimerosal, a mercury-based preservative.

CNN: Vaccines didn't cause autism, court rules