Articles of category "Influenza"

Flu or grippe differs in several ways from the common cold. The disease is caused by flu viruses, which penetrate the immune system of the person and start doing harm to host cells of the human body. There are three categories of flu viruses ensuring the existence of three different flu types we will talk about in this article: type A (the most common), type B and type C.

Flu is a respiratory infection causing such flu symptoms as chills, couch, fever, body aches, headaches, etc. According to the flu information the cause of the disease is known as flu virus, which is a very small microorganism not seen without a microscope. For the majority of people, flu means drag. However, it goes away approximately in a week or two. At the same time, there are some groups of people which usually feel very bad when they have flu.