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2009-2010 Seasonal Influenza Vaccines

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• an A/Brisbane/59/2007 (H1N1)-like virus
• an A/Brisbane/10/2007 (H3N2)-like virus
• a B/Brisbane/60/2008-like virus

About Seasonal Influenza

• According to CDC, between 5 and 20 percent of the U.S. population develops seasonal influenza each year. More than 200,000 people are hospitalized from its complications and about 36,000 people die.

• Symptoms of the flu include fever, headache, body aches, chills, extreme exhaustion, and weakness.

• Influenza is spread through coughing or sneezing. You can also get it by touching objects carrying the virus, especially when you then touch your mouth or nose. Such objects include telephones and door knobs.

• Most healthy adults may be able to infect others one day before their own symptoms develop and up to five days after becoming sick.

• Washing your hands often is a key strategy for preventing influenza. Teach your kids about the importance of hand washing. Cover your nose and mouth with a tissue when you cough or sneeze. Throw the tissue in the trash after you use it.

• Most people recover from the flu within one to two weeks. But some develop serious complications such as pneumonia, ear infections, sinus infections, dehydration, and worsening of chronic medical conditions such as congestive heart failure, asthma, or diabetes.

About 2009 H1N1 Influenza

• The spread of the 2009 H1N1 influenza virus is thought to occur the same way that seasonal influenza spreads. The symptoms of the 2009 H1N1 influenza in people include fever, cough, sore throat, runny or stuffy nose, body aches, headache, chills and fatigue. A significant number of people who have been infected with this virus also have reported diarrhea and vomiting.

• Illness with the 2009 H1N1 influenza has ranged from mild to severe. While most people who have been sick have recovered without needing medical treatment, hospitalizations and deaths from infection with this virus have occurred.

• Unlike seasonal influenza, the 2009 H1N1 influenza virus has affected more people younger than 25 years of age rather than older people. At this time, there are few cases and few deaths reported in people older than 64 years old, which is the opposite from what happens with seasonal influenza.