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What is Occurence of disease in excess of expected frequency is known as and explain in detail?
Endemic: refers to the constant presence of a disease or infectious agent within a given geographic area or population group without impoation from outside. Exotic: diseases which are impoed into a country in which they do not otherwise occur as for example rabies in the UK . Epizootic: an outbreak of the disease in an animal population. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 101