Communicable diseases easily spread if personal and public cleanliness is not maintained. People suffering from communicable diseases should not urinate, defecate or spit in open because it may lead to spread of varieties of bacteria and virus. They should cover their mouth and nose while sneezing or coughing so that there will be less chance of spread of germs. These diseases spread when a diseased person spread space with others. If a healthy person has low immune power he might get caught by these diseases so it may break into an epidemic. So people suffering from communicable diseases should avoid going to public places.
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