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Cold Description: commonly known as ＂cold＂ is caused by a combination of a respiratory virus common diseases, of which 30% -50% by a nasal virus serotypes cause. Although many of the common cold in the early winter, but any season, such as spring, summer may also occur, the different seasons pathogenicity influenza virus is not exactly the same. Distribution of flu cases is sporadic, and not from pop, and often easy with bacterial infection. Acute onset than the common cold, early symptoms of a dry throat itching or burning flu, sneezes, stuffy nose, runny nose, the nose began to water samples, 2 ~ 3 days Biantiao; may be associated with angina; no fever and general body symptoms, or only fever and headache. Generally 5 to 7 days to recover.