Related Clues:

• Common reason for absence
• Cold cousin
• Bug that thrives in winter
• ___ bug
• Asian __
• Nasty bug
• CDC concern
• Target of fall shots
• School attendance drop-off cause
• Cause of chills, perhaps
• Wintertime vaccine target
• Virus that can be passed through kissing!!! Watch out
• Concern of a global WHO program
• Misfortune wished on another
• Bug that's not hard to catch