The Causes of H1N1

There a few causes of A (H1N1) Influenza. The first cause is due to bacterial infections of the lower respiratory tract. The signs of a secondary respiratory infection often appear just as the victim seems to recover. These signs include high fever, intense chills, chest pains associated with breathing and productive cough with thick yellowish green sputum. When these symptoms appear, medical treatment is necessary. The other infections such as sinus or ear infections may also require medical intervention. Next, heart and lung problems and other chronic diseases, can be aggravated by influenza, which is a particular concern with aged patients. As for children and teenagers, it is advisable for them to be alert for symptoms such as Reye's syndrome which is a disorder principally affecting the liver and brain, marked by rapid development of life-threatening neurological symptoms. It is a rare but serious complication. The symptoms of Reye's syndrome are nausea and vomiting and more seriously neurological problems can be developed such as confusion or delirium which is a state of mental confusion that develops quickly and usually fluctuates in intensity. This syndrome occurs associated with the use of aspirin to relieve flu symptoms.
In more serious cases, influenza causes pneumonia, which can be fatal and particularly for the young and the elderly. Although it is often confused with other influenza-like illnesses, especially the common cold influenza is a much more rigorous disease than the common cold. Influenza may produce nausea and vomiting particularly in children, but these symptoms are more common in the unrelated gastroenteritis, which is sometimes called "stomach flu" or "24-hour flu". Typically, influenza is transmitted through the air by coughs or sneezes, creating aerosols containing the virus. Influenza can also be transmitted by bird droppings, saliva, nasal secretions, feces and blood. Infection can also occur through contact with these body fluids or through contact with contaminated surfaces. Airborne aerosols have been thought to cause most infections, although which means of transmission is most important is not absolutely clear. Influenza viruses can be inactivated by sunlight, disinfectants and detergents. However, the virus can be inactivated by soap and frequent hand wash can reduce the risk of the infection.