Stanford University
The 1918 Influenza Pandemic: Responses
The worldwide spread of influenza in 1918 activated much scientific research into the source of the virus, its treatment, and therapy for those affected. Read about how the concept of a virus causing such a disease was validated.
Other
Medinfo: Common Conditions: Influenza
This site describes the symptoms, causes, diagnosis, treatments, new developments, preventions, and high risk groups that would be susceptible to contracting influenza.