Public cleanliness is important for individual health. Public awareness of diseases, such as its mode of spread, causes and treatment can effectively stop the propagation of diseases. Cleanliness is paramount as diseases can easily spread if the environment if unclean. For instance, in the middle ages, the plague was spread by fleas, which persisted on rats that thrived in the unhygienic conditions. Similarly, mass outbreaks of diseases can arise from such situations where there is no cleanliness.
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