Early Flu Symptoms
Article Sources
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3. Sore Throat
As mentioned above, the flu is a viral infection of the respiratory tract. Since the throat is a part of the respiratory tract it makes sense that a sore throat would be a symptom of the flu. A sore throat could also be caused by Strep throat, different infections of the upper respiratory system, allergies, smoke inhalation, etc.
It can be tough to tell if a sore throat is from a bacterial infection or a viral infection which can sometimes make treatment a challenge. A doctor will likely review why a sore throat may be bothering a patient and combine this with other symptoms and some lab tests in order to come to the correct diagnosis and course of treatment.
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