Influenza is caused by a virus. It affects millions every year, leading often to endemics, and sometimes to pandemics and it can be fatal. The development of vaccines has played a major part in protecting people but as there are changes in virulence continuing research is essential to and new ways of combating this menace.
Disease: Influenza
Last update: July 2009
Intro
FAQ
-
What is it?
Influenza (flu) is caused by a virus that affects the nasal passages, throat and lungs. It can cause serious, even fatal, infections. The virus changes every year, which may cause epidemics or even pandemics (world wide epidemics). -
Who gets it?
Anyone can get influenza. Most people who get it recover in one or two weeks. However, for young children, the elderly or those with weakening medical conditions, it can be life-threatening. It has been estimated that 120 million people every year in the USA, Europe and Japan get influenza. -
What can be done about it?
Vaccination each autumn prevents flu outbreaks and reduces the amount of influenza. Because the virus changes frequently, flu vaccines have to be adapted for each vaccination campaign. Medicines are available to provide relief of the symptoms and reduce the fever. Antiviral medicines are also used. -
What does the future hold?
Research scientists are looking at a variety of new approaches to influenza. These include the development of new types of vaccine (which do not require injection) and the production of new anti-viral compounds. The focus of the research is not only to relieve the widespread misery of influenza but also to prevent fatal outbreaks.