Influenza is a very common infection that spreads during winter time. In general flu is a lightly disease, but it may complicate the evolution of chronic patients, and even healthy ones. The best answer to stop the propagation is just to wash your hands. But official institutions and private organizations push to introduce influenza vaccine in children, elderly and health professionals, even asking for mandatory vaccination. There are no scientific bases for this proposal. See the text with links to the best evidence about this question, many from Cochrane Reviews.
- A few reasons to say no, thanks, to influenza vaccines. Gérvas, J. Madrid (Spain), September 2012. Descargar texto completo aquí.