H1N1 Influenza: The Year in Review

In April 2009, one year ago, Centers for Disease Control and Prevention (CDC) scientists identified an influenza virus that had never been reported anywhere in the world. The discovery ignited a comprehensive response to protect against the new virus - the H1N1 flu. Scientists developed a safe and effective vaccine. Vaccine manufacturers worked day and night to get as much vaccine out the door as fast as possible. Doctors and nurses worked around the clock to care for patients who became ill, schools helped teach kids how to prevent the spread of the flu, and HHS' top flu experts led the most comprehensive vaccination program in our lifetime.