Related Clues:

• Why you need a shot in the arm?
• Bird ___
• Avian menace
• Common winter bug
• Viral ailment
• One cause of absence
• What some shots prevent
• Common bug
• Viral trouble
• More than a cold
• Scourge of 1918
• It may be going around
• Vaccine target
• Winter health woe
• Asian or Hong Kong illness