Another way to prevent it. Maintain a healthy body, strong, always has the disease. Avoid being in crowded communities. Lack of good sanitation system. Avoid being in crowded, there are no air for a long time. Wash hands frequently. Bed rest very much. Do not cough, sneeze, breathe more. Do not drink a glass of water with one another or with other people, smoking a roll. Wash hands when touching the other person's snot and saliva is.
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