Epidemic and Endemic

Epidemic (Epi=Upon; Demos = people):

            The occurrence of cases of a disease or other health related events clearly in excess of normal expectation in a particular place in a given period of time is called on epidemic.

            The usual epidemic diseases are: measles, chickenpox and cholera.

Endemic (En-in; Demos = People):

            The occurrence of a disease or infectious agent regularly in an area either throughout the year, or in particular seasons on an yearly basis without importation from outside is called endemic.

            Example: Cholera in post monsoon period in rural Bangladesh, malaria and leprosy in some parts, goitre at Rangpur and Jamalpur regions.  

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