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Germany
Population Surveillance
Disease Notification
Communicable Disease Control
Disease Outbreaks
Pandemics
Human Influenza
Communicable Diseases
Travel
H1N1 Subtype Influenza A Virus
Young Adult
Infants
Shiga Toxigenic Escherichia coli
Incidence
Risk Factors
Risk Assessment
Cross-Sectional Studies
Influenza Vaccines
Public Health
European Union
Co-Publications
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