Abstract
Influenza is an uncontrolled epidemic disease that occurs every winter. Epidemics, which vary in severity, are measured by excess mortality, but influenza is always the leading cause of acute respiratory tract infections that lead to health care visits or hospitalization. Therefore, when an epidemic is classified as “mild,” this comparison is only with other flu epidemics; even mild flu epidemics result in the highest rates of health care encounters for the season. The effect on health care facilities is magnified by the usual sharp seasonality of influenza outbreaks. Many patients, particularly young children, experience a sudden onset of symptoms that . . .
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