For vulnerable groups, such as the very young, the very old those with immune problems, pasteurized eggs are best.

对那些老幼等极易敏感的团体，巴氏消毒鸡蛋是最好的选择。

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Eye problems can indicate an unhealthy lifestyle with subsequent suppression of the immune system.

眼睛问题表明一种不健康的生活方式以及随后免疫系统所受的抑制。

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Starfish are also amazingly immune to problems that affect the rest of us.

海星对于那些影响我们的问题也有着惊人的免疫能力。

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Fungi which don't often cause infections in people with healthy immune systems but can under some circumstances, and can be tremendous problems in patients that have weakened immune systems.

真菌在免疫系统健康的情况下通常,不引起感染,但在某些情况下也会感染,那就成了极大的问题,在免疫系统脆弱的病人体内

耶鲁公开课 - 生物医学工程探索课程节选

U.S. universities work fine by comparison, but higher education is not immune to problems.

FORBES: Craig R. Barrett

You'd think that export-heavy aerospace, of all U.S. industries, would be immune to problems radiating from the U.S. subprime mess.

FORBES: Boeing: Getting Beyond The Turbulence

This should help researchers focus on the specific immune-system problems that underlie the disease.

ECONOMIST: Human genomics