Merely being exposed to a new cold virus, however, is not enough for a person to catch a cold, since a strong immune system can successfully fight off some new viruses.

然而，仅仅是接触到一种新的感冒病毒并不足以导致一个人患感冒，因为强壮的免疫系统能够成功地战胜一些新病毒。

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So susceptibility to cold symptoms is not a sign of a weakened immune system, but quite the opposite.

因此，易受感冒症状的影响并不是免疫系统虚弱的一种迹象，情况刚好相反。

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The sniffling-and-sneezing symptoms of a cold are not the act of the virus itself but the result of your immune system's overly energetic response to the infection, Cohen said.

鼻塞和打喷嚏的感冒症状并不是感冒病毒本身的表现，而是你自身的免疫系统过度积极的应对病毒传染，科恩说。

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Delayed spring weather may be part of the cause for the Mets dipping attendance figures, except for the fact that the Philadelphia Phillies and Boston Red Sox are playing home games in front of over-capacity crowds in cities that are not immune to the cold.

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