| http://www.w3.org/ns/prov#value | - Vaccination is especially important in the following groups, who are at a high risk for complications from the flu:People who are 50 or more years of agePeople who are 6 to 49 months of agePeople who have chronic lung disease, including asthma and COPD, or heart diseasePeople who are 18 years old or younger AND taking long-term aspirin therapyPeople who have sickle cell anemia or other hemoglobin-
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