Answer: epidemic

AnswerCrossword Clue
EPIDEMIC

CDC concern

EPIDEMIC

Widespread

EPIDEMIC

Spreading fast

EPIDEMIC
Bug problem?
EPIDEMIC
Flu outbreak, e.g.
EPIDEMICUncontrolled outbreak
EPIDEMICSerious flu outbreak, e.g.
EPIDEMICContagious, as laughter
EPIDEMICGreat Plague, e.g.
EPIDEMICWidespread outbreak
EPIDEMICSpreading out of control
EPIDEMICWidespread ailment.
EPIDEMICWidespread.
EPIDEMICGenerally prevailing.
EPIDEMICExcessively prevalent
EPIDEMICThe flu, in 1918
EPIDEMICRampant
EPIDEMICNot localized
EPIDEMICPrevalent and rapidly spreading
EPIDEMIC"The Andromeda Strain" fear
EPIDEMICBlack Death of 14th century Europe, for one
EPIDEMICQuickly caught by a lot
EPIDEMICRapid spread of a disease