What's is flu?
Flu is one of the most common and widely spread illnesses. Speaking about influenza, we should mention that it’s a viral infection. When someone in your surrounding has the flu you should be careful not to catch it. It is usually manifested by fever, strong headache, muscle pain, cough, running nose, sometimes sore throat or earache.Depending on the level of heaviness it can even turn into pneumonia. In that case hospitalization is necessary. At the moment, there are three basic forms of influenza known in the world: A, B and C. All of them can be treated just by different methods and pills.
