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1、INACTIVATEDINFLUENZAVACCINEWhy get vaccinated?1Influenza (“flu”) is a contagious disease. It is caused by the influenza virus, which can be spread by coughing, sneezing, or nasal secretions.Other illnesses can have the same symptoms and are often mistaken for influenza. But only an illness caused by
2、 the influenza virus is really influenza. Anyone can get influenza, but rates of infection are highest among children. For most people, it lasts only a few days. It can cause: fever sore throat chills fatigue cough headache muscle achesSome people, such as infants, elderly, and those with certain he
3、alth conditions, can get much sicker. Flu can cause high fever and pneumonia, and make existing medical conditions worse. It can cause diarrhea and seizures in children. On average, 226,000 people are hospitalized every year because of influenza and 36,000 die mostly elderly. Influenza vaccine can p
4、revent influenza. Who should get inactivated influenza vaccine?3There are two types of seasonal influenza vaccine: 1. Inactivated (killed) vaccine, or the“flu shot” is given by injection into the muscle. 2. Live, attenuated (weakened) influenza vaccine is sprayed into the nostrils. This vaccine is d
5、escribed in a separate Vaccine Information Statement. Influenza viruses are always changing. Because of this, influenza vaccines are updated every year, and an annual vaccination is recommended. Each year scientists try to match the viruses in the vaccine to those most likely to cause flu that year.
6、 When there is a close match the vaccine protects most people from serious influenza- related illness. But even when there is not a close match, the vaccine provides some protection. Influenza vaccine will not prevent “influenza-like” illnesses caused by other viruses. It takes up to 2 weeks for pro
7、tection to develop after the shot. Protection lasts up to a year. Some inactivated influenza vaccine contains a preservative called thimerosal. Some people have suggested that thimerosal may be related to developmental problems in children. In 2004 the Institute of Medicine reviewed many studies loo
8、king into this theory and concluded that there is no evidence of such a relationship. Thimerosal-free influenza vaccine is available. Anyone who wants to reduce the likelihood of becoming ill with influenza or spreading influenza to others.All children 6 months and older and all older adults: All ch
9、ildren from 6 months through 18 years of age. Anyone 50 years of age or older. Anyone who is at risk of complications from influenza, or more likely to require medical care: Women who will be pregnant during influenza season. Anyone with long-term health problems with: - heart disease - kidney disea
10、se - liver disease - lung disease - metabolic disease, such as diabetes - asthma - anemia, and other blood disorders Anyone with a weakened immune system due to: - HIV/AIDS or other diseases affecting the immune system - long-term treatment with drugs such as steroids - cancer treatment with x-rays
11、or drugs Anyone with certain muscle or nerve disorders (such as seizure disorders or cerebral palsy) that can lead tobreathing or swallowing problems. Anyone 6 months through 18 years of age on long-term aspirin treatment (they could develop Reye Syndrome if they got influenza). Residents of nursing
12、 homes and other chronic-care facilities.Anyone who lives with or cares for people at high risk for influenza-related complications: Health care providers. Household contacts and caregivers of children from birth up to 5 years of age. Household contacts and caregivers of - people 50 years and older,
13、 or - anyone with medical conditions that put them at higher risk for severe complications from influenza. Health care providers may also recommend a yearly influenza vaccination for: People who provide essential community services. People living in dormitories, correctional facilities, or under oth
14、er crowded conditions, to prevent outbreaks. People at high risk of influenza complications who travel to the Southern hemisphere between April and September, or to the tropics or in organized tourist groups at any time. Many Vaccine Information Statements are available in Spanish and other language
15、s. See www.immunize.org/vis.2009-10W H A T Y O U N E E D T O K N O WInactivated influenza vaccine2These “seasonal” influenza vaccines are formulated to prevent annual flu. They do not protect against pandemic H1N1 influenza.When should I get influenza vaccine?4You can get the vaccine as soon as it i
16、s available, usually in the fall, and for as long as illness is occurring in your community. Influenza can occur any time from November through May, but it most often peaks in January or February. Getting vaccinated in December, or even later, will still be beneficial in most years.Most people need one dose of influenza vaccine each year. Children younger than 9 years of age getting influenza
