Foto Dewi Persik Telanjang Disease symptoms of colds are caused by flu. Flu or influenza is caused by a virus that attacks the respiratory system. The virus enters the body of living things and then use it as a place to breed. The virus is transmitted to others through a granular fluid of saliva or mucus are expelled when someone coughs, sneezes, or speaks. The virus quickly spread along with fluids are expelled. Air as a medium for the spread of the virus and if you breathe air with the condition of the body that do not fit can make you the flu. That is why the spread of flu is very easy. Another way is to spread the flu virus when a flu sufferer who holds the nose or mouth to make flu virus moves into his hands. When the person holding the door handle, the virus moves, and if you hold the handle of the door, the virus had moved into your hands. Furthermore, either intentionally or unintentionally, you may hold the mouth or nose, resulting in viral entry into your body and can cause you to have the flu. Flu not only attack humans, but can also attack animals or birds. The danger from this flu virus is the virus could mutate so as to create new types that can not be resisted by the immune system. Animals with flu can infect humans and endanger such as bird flu or flu which is a kind of new virus. This new type can be dangerous and can cause a deadly flu epidemic.
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