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Although the acute manifestations of influenza are usually self-limited, the
cough is often severe and protracted. The disease is more severe and prolonged
in older individuals. They tend to develop bacterial pneumonia, particularly in
those with cardiovascular and pulmonary diseases. Primary viral pneumonia may
occur but rather uncommon. Reyes syndrome is an important complication of
influenza in children who are taking aspirin for fever or for other therapy.
This disease involves the CNS and liver, more frequent with influenza B than
influenza A. |
