Commonly referred to as a cold caused by viral upper respiratory tract caused by the infection, its symptoms include one or more of the following: ...

Commonly referred to as a cold caused by viral upper respiratory tract caused by the infection, its symptoms include one or more of the following: runny nose, stuffy nose, sneezing, coughing. Sore throat, hoarseness, fever, fatigue, headache, diarrhea. The reason why colds are different levels and patterns of symptoms because the virus can cause a cold, at least more than 100 kinds. Due to different virus infection, coupled with everyone's response to the same virus also vary, so to show the same symptoms and will not.

When caught a cold after the incubation period is generally about 1-3 days. Usually by the throat and then started to feel uncomfortable, and then have other symptoms in the third, when a four-day peak. If there are no complications, the general 4-10 days will be more cases. Cold reason, and is due to the body after infection resulted in the elimination of antibodies to the virus because of the margin. Flu is a minor illness, but can not.