You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The standard definition of public health was given by and explain in detail?
Chadwick worked on great cholera epidemic of 1932 and published " The sanitary conditions of the labouring population in Great Britan"Jon Snow studied the epidemic of choleraShattuck published a book on health conditions in Massachusetts.Winslow defined public health as" the science and a of preventing disease, prolonging life and promoting health and efficiency through organised community effo.Park 23e pg:9