Answer:

colds

Answer	Crossword Clue
COLDS	Winter woes
COLDS	They may be caught in school
COLDS	Sniffles causes

COLDS	Common woes
COLDS	"Common" complaints
COLDS	They get passed around
COLDS	Stuffiness causes
COLDS	Mild winter ailments
COLDS	Nose woes
COLDS	They may be spread around the office
COLDS	Causes of sneezes

COLDS	Common maladies
COLDS	They're easily caught
COLDS	Winter maladies
COLDS	Winter ailments
COLDS	Sneezin' reason
COLDS	Spring ailments.
COLDS	What opera singers dread.
COLDS	Common things.

COLDS	Attacks of coryza.
COLDS	Sneezles and wheezles.
COLDS	Winter inconveniences.
COLDS	Common things in winter.
COLDS	Common ailments.
COLDS	Commonplaces of the season.
COLDS	Easy-to-catch items.
COLDS	Common problems.

COLDS	Common ailments
COLDS	Causes of much absenteeism
COLDS	Respiratory infections
COLDS	These are easy to catch
COLDS	No cure for these!
COLDS	Sniffles cases
COLDS	Causes of some absences
COLDS	Attendance preventers

COLDS	Ailments for which there is no known cure
COLDS	Causes of coughs
COLDS	They're easy to catch
COLDS	They result from catching bugs
COLDS	They're not hard to catch