Not right. cold and flu are both caused by virus.

來源: kathyzh 於 2017-11-02 08:31:09 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (339 bytes)
回答: 受涼會感冒是cold，病毒性感冒是flu 由 夏陽 於 2017-11-02 08:09:05
The common cold and influenza are both upper respiratory infections caused by a virus. The difference between them is: Flu gives rise to a high fever; a cold may give rise to a mild fever. Flus usually start with a dry throat and nose; a cold usually starts with a runny nose.
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