Related Clues:

• Reason to get vaxxed
• Annual shot's target
• Target of an annual shot
• Illness that creates instability when unknown factor is added
• Viral infection was airborne, according to radio report
• Yearly vax target
• Annual vax target
• January illness
• Illness reportedly went quickly
• Kind of shot given annually
• Fever is a symptom of this
• Winter bug?
• Illness worse than a cold
• Bug prevalent in winter
• Sickness for many in winter