484917a9__Is_it_a_Cold_or_Is_It_the_Flu__H1N1_Seasonal_Flu
[Symptom] Chills [Cold] Chills are uncommon with a cold. [H1N1/Seasonal Flu] 
Chills are common with influenza.
Wellmark Blue Cross and Blue Shield | Is it a Cold or Is It the Flu
H1N1/Seasonal Flu