Google Flu Trends includes 14 European countries.
European Centre for Disease Prevention and Control, Stockholm, Sweden. eurosurveillance@ecdc.europa.eu
D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D005060:Europe / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology*; D011159:Population Surveillance / Q000379:methods*; D011174:Portugal / Q000453:epidemiology; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D057386:Search Engine / Q000379:methods*; D012984:Software