b5f73a45_n_Health__October_2005____NIH___Airborne_Allergy
[Symptoms] Complications [Cold] Sinus congestion, middle ear infection, asthma [Flu] Bronchitis, pneumonia; can be life-threatening [Airborne Allergy] 
Sinus infection, asthma
News in Health, October 2005 - (NIH)
Airborne Allergy