The best way to guard against getting the flu is to get a yearly flu vaccine. Usually, you can get the vaccine at your doctor's office or a local clinic, and in many communities at workplaces, supermarkets, and drugstores.
For 2007, the CDC recommends flu shots for the following populations:
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School-aged children.
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Children 6-59 months.
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Anyone over 50 years of age.
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Children 6 months to 18 years who are receiving long-term aspirin therapy and are at a increased risk for Reye syndrome after influenza virus infection.
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Women who are or will be pregenant during the flu season.
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Anyone whose immune system is suppressed.
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Anyone with chronic pulmonary, cardiovascular, renal, hepatic, hematological, or metabolic disorders.
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Anyone with a condition that could compromise respiratory function or the handling of respiratory secreations or that can increase the risk of aspiration.
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Residents of nuring homes and long-term care facilities.
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Healthcare personnel.
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Caregivers and those in contact with children less than five years of age and adults 50 years of age.
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Caregivers and those in contact with people that have medical conditions that put them at higher risk for severe complications from flu.