(A disease) occurring in a population or geographic area in excess of what would be normally be expected
An occurrence of a disease or disorder in a population at a frequency higher than that expected in a given time period
The occurrence of more cases of disease than expected in a given area or among a specific group of people over a particular period of time
an outbreak of disease such that for a limited period a significantly greater number of persons in a community or region suffer from it than is normally the case Thus an epidemic is a temporary increase in prevalence Its extent and duration are determined by the interaction of such variables as the nature and infectivity of the casual agent, its mode of transmission and the degree of preexisting and newly acquired immunity 43
An outbreak of a disease that infects many individuals in a population, and can be difficult or impossible to contain
An outbreak of an acute illness that infects many individuals in a population by spreading rapidly among many people at the same time and can be difficult or impossible to contain The occurrence of illnesses or outbreak clearly exceeds the normal expectancy in the given population at the given season of the year
If there is an epidemic of a particular disease somewhere, it affects a very large number of people there and spreads quickly to other areas. A flu epidemic is sweeping through Moscow. a killer epidemic of yellow fever
A disease that occurs clearly in excess of normal expectation and spreads rapidly through a demographic segment of the human population Epidemic diseases can be spread from person to person or from a contaminated source such as food or water
The occurrence of disease within a specific geographical area or population that is in excess of what is normally expected