Hepatitis C
HIV/AIDS
Influenza
Definition
Causes
Predisposition
Diagnosis
Therapy
Prevention
Pandemic
Facts worth knowing
Sudden onset of illness
Fever
/ chills
Cough
Severe aches and pains
Headache
Persistent fatigue and weakness
Other cases of influenza in the area
© 2002-2009 F. Hoffmann-La Roche Ltd
See our Legal Statement