Epidemiology Is Not For Diseases Among Human Populations

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Background
Epidemiology is the study of how often diseases spread through a population. This information can be used to help reduce the damage caused in future epidemics and also help to understand the best way to treat patients of a current epidemic.
The word epidemiology comes from Greek, literally translating to “the study of what is upon the people”. However nowadays epidemiology is not limited to diseases among human populations, epidemiology can now be the study of disease in any defined population.
Mathematical models of epidemics were not used until the early 20th century. When there were early pioneers such as William Hamer and Ronald Ross who successfully created models that shared similar properties to the disease.
History
Hippocrates
The timeline of epidemiology starts in Greece with a man named Hippocrates, though now he is often referred to as “The father of medicine”. Hippocrates was the first person to observe the link between disease and the environment of the infected person, and he then began to think about whether the link might be causal. Prior to this ground-breaking idea people had simply attributed disease to a supernatural phenomenon and had not considered that there may be a rational explanation for the spread of disease through the population. Hippocrates decided to investigate the environmental factors involved with disease after he had noticed that different diseases occurred in different locations (for example: Malaria only seeming to occur in
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