Answer: epidemic

AnswerCrossword Clue
EPIDEMICGenerally prevailing.
epidemica widespread outbreak of a disease
epidemicepidemic disease
epidemicaffecting many persons at once
EPIDEMICRapid spread of a disease
EPIDEMICQuickly caught by a lot
EPIDEMICBlack Death of 14th century Europe, for one
EPIDEMIC"The Andromeda Strain" fear
EPIDEMICPrevalent and rapidly spreading
EPIDEMICNot localized
EPIDEMICRampant
EPIDEMICThe flu, in 1918
EPIDEMICExcessively prevalent
EPIDEMICCDC concern
EPIDEMICWidespread.
EPIDEMICWidespread ailment.
EPIDEMICSpreading out of control
EPIDEMICWidespread outbreak
EPIDEMICGreat Plague, e.g.
EPIDEMICContagious, as laughter
EPIDEMICSerious flu outbreak, e.g.
EPIDEMICUncontrolled outbreak
EPIDEMICFlu outbreak, e.g.
EPIDEMICBug problem?
EPIDEMICSpreading fast
EPIDEMICWidespread