In mid-summer, as the epidemic swept through the region, schools closed one by one.
Lee Siegel on the current epidemic of political cowardice—and the death of the noble defeat.
Problems include an epidemic of Roundup-resistant weeds, and increased use of Roundup and other herbicides to kill them.
epidemic ep·i·dem·ic (ěp'ĭ-děm'ĭk) or ep·i·dem·i·cal (-ĭ-kəl)
Spreading rapidly and extensively by infection and affecting many individuals in an area or a population at the same time, as of a disease or illness. n.
An outbreak or unusually high occurrence of a disease or illness in a population or area.
An outbreak of a disease or illness that spreads rapidly among individuals in an area or population at the same time. See also endemic, pandemic.