What are the symptoms of flu?

How is the flu diagnosed?

In order to definitely know whether a person has the flu a laboratory test must be done of a swab from inside the nose or the throat. A doctor who considered it necessary would order the test. For that, a patient must first feel sick enough to go to the doctor.

Other than a laboratory test, doctors may also diagnose the flu based on some common symptoms. Signs of the flu include:

  • Fever
  • Chills
  • Headache
  • Aches in joints and muscles
  • Cough
  • Sore throat

Flu symptoms are similar to those of the common cold, but with the flu a person will fall ill much faster and feel much worse. Also, fever, chills and aches are very common to the flu and rare with a common cold.

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