Flu Symptoms You Should Be Aware Of
By Admin on October 31st, 2010
Flu Symptoms You Should Be Aware Of
There are many types of viruses in nature that can cause influenza, especially as one strain mutates into another and another… and so on. Here are some of the flu symptoms. The influenza virus is found in all mammals as well as most birds and is different from that which brings about the common cold – it is far more severe in the way it incapacitates the carrier. There are 3 main types of influenza virus labelled as A, B and C. Wild aquatic birds are the main carriers of type A flu virus, which when spread through domesticated poultry, enters the human body causing epidemics and the recent avian and swine flu pandemics. Type B influenza virus is almost exclusive to humans and mutates much less than type A, so it is less diverse and people generally acquire a level of natural immunity to it, but this may not be life – long. There have been no known pandemics due to this type of flu virus. Type C virus is found in humans, dogs and pigs, may cause local epidemics but usually causes mild diseases in children.