Influenza: symptoms


The influenza's (also called "the flu") symptoms are fairly typical.

Flu's beginning is usually brutal. May emerge aches, joint pain, headaches, a nasopharyngitis, cough, bronchitis as well as a conjunctivitis.

High temperature

A high fever greater than 39, or even 40 degrees, accompanied by chills remains one of the main symptoms of influenza.
The influenza's V is typical: fever temporarily decrease at the 4th day, rises between the 5th and 6th day, then disappears.


A significant fatigue often requiring a work stoppage of several days for active people.

Gastrointestinal symptoms

Diarrhea and/or vomiting may occur.


Symptoms persist between 2 and 4 days. Fatigue and cough persist longer.
Some people are tired for several weeks.


Influenza evolves very favorably for the majority of people, with the symptoms disparition.

Possible complications

The flu can cause complications more or less severe, and sometimes fatal in some people more vulnerable. This concerns infants, the elderly, pregnant women, patients with respiratory or heart disease, people with immune deficiencies ..

Mild complications

Sinusitis and / or bronchitis may occur during flu.

More serious complications

Severe and fortunately rare complications can be seen for frail or elderly: pneumonia, pleurisy or meningitis may occur for example.
Influenza is a contagious disease and can lead to serious complications


Rest, antipyretics and symptomatic medication for lowering the temperature are most often prescribed. Proper hydration is also necessary. A medical advice is recommended especially in case of occurrence of complications