A sudden increase in the incidence rate of a disease to a value above normal, affecting large numbers of people and spread over a wide area.
Spreading rapidly and extensively by infection and affecting many individuals in an area or a population at the same time.
(especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously; "an epidemic outbreak of influenza"
a widespread outbreak of an infectious disease; many people are infected at the same time
(especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously
