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1. What is a flu pandemic?

An influenza pandemic occurs when a new influenza virus appears against which the human population has no immunity, resulting in epidemics worldwide with enormous numbers of deaths and illness. With the increase in global transport, as well as urbanization and overcrowded conditions, epidemics due the new influenza virus are likely to quickly take hold around the world.

Outbreaks of influenza in animals, especially when happening simultaneously with annual outbreaks of seasonal influenza in humans, increase the chances of a pandemic, through the merging of animal and human influenza viruses. During the last few years, the world has faced several threats with pandemic potential, making the occurrence of the next pandemic a matter of time.

2. What should I know about the 2011-2012 flu season?

This page provides information about the 2011-2012 influenza season, including information about the season's vaccines, vaccination recommendations and disease activity. Find out more about the upcoming flu season

3. What can I do to prevent catching the flu?

Flu is a serious contagious disease that can lead to hospitalization and even death.CDC urges you to take the following actions to protect yourself and others from influenza (the flu). Follow the "Three Steps"