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A member asked:
What are the differences between hay fever and flu?
13 doctors weighed in across 2 answers
Fever, length: Hay fever (an allergic response to pollen) and flu (a viral infection) may have similar symptoms (sneezing, runny nose, congestion, headache, scratchy throat) but differ in important ways. Allergies can last weeks but flu lasts 1-2 weeks. Allergies don't cause fever whereas flu can cause high temperature & chills. Of course, flu is contagious but allergies are not. Consult your doctor to be sure.
Answered 8/19/2016
6.3k views
Allergy vs infection: Hay fever is an allergy to substances in the air. Flu is due to a viral infection.
Answered 4/29/2016
6.1k views
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