what is public health

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Public health is the science of improving and protecting the health of communities through encouraging and promoting healthy lifestyles of communities and families. Public health also involves research of disease, injury prevention  and most important, detection and control of infectious diseases.Public health is concerned with protection of  the health of whole populations which may consist of just small neighborhoods, or as large as the entire country or a region of the world.Public health professional are trained in all matters of public health and safety and are responsible in ensuring this is carried out.

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