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普通感冒是病毒感染阿，同气温的关系未被证实：

Exposure to cold weather

Although common colds are seasonal, with more occurring during winter, experiments so far have failed to produce evidence that short-term exposure to cold weather or direct chilling increases susceptibility to infection, implying that the seasonal variation is instead due to a change in behaviors such as increased time spent indoors at close proximity to others.[2][18][19][20][21]
With respect to the causation of cold-like symptoms, researchers at the Common Cold Centre at the Cardiff University[9] conducted a study to "test the hypothesis that acute cooling of the feet causes the onset of common cold symptoms."[22][23][24] The study measured the subjects' self-reported cold symptoms, and belief they had a cold, but not whether an actual respiratory infection developed. It found that a significantly greater number of those subjects chilled developed cold symptoms 4 or 5 days after the chilling. It concludes that the onset of common cold symptoms can be caused by acute chilling of the feet. Some possible explanations were suggested for the symptoms, such as placebo, or constriction of blood vessels, however "further studies are needed to determine the relationship of symptom generation to any respiratory infection."
普通感冒是由那种病毒引起?不要告诉我流感病毒,那会传染的奥.