Influenza, or the flu, is a viral infection of the respiratory system. Symptoms of influenza often appear within a few days of being exposed to the virus. These symptoms typically begin 1–4 days after exposure to the virus and last for about 2–8 days. Influenza may progress to pneumonia, which can be caused by the primary viral infection or by a secondary bacterial infection.
Fever
Greater than or equal to 38°C (100.4°F), Less than 38°C (100. 4°F)
With chills
common
Fatigue
common
Blocked nose
or Runny nose
common
Cough with mucus or without mucus
Dry
Lasting 3 weeks or less
common
Muscle pain
common
Headache
common
Poor appetite
common
Joint pain
common
Sternutation
Pain, scratchiness or irritation of the throat
Feel like vomiting
Diarrhea
If you have Influenza, then a visit to a general practitioner is recommended.
Contact a
General practitioner