Influenza in the Emergency Department.

Sommerstein R Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.
Ricklin ME Department of Emergency Medicine, Bern University Hospital, University of Bern, Bern, Switzerland.
Barbani MT Institute for Infectious Diseases, University of Bern, Bern, Switzerland.
Marschall J Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.
Sendi P Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.