What is seasonal influenza?
Seasonal influenza, also known as flu, is caused by influenza viruses. It affects the respiratory system mainly nose and throat. The effect of the seasonal influenza can vary from mild to severe symptoms.
Is it a cold or flu?
Sometimes it can be difficult to tell the difference between a bad cold and flu. Both are respiratory illnesses, but are caused by different types of viruses. The symptoms are almost the same, but are more severe in flu. Most common symptoms in flu are high fever, body pains, extreme tiredness and dry cough. Whereas symptoms in common cold are headache, and runny or stuffy nose.