Surveillance and monitoring
WHO/Harold Ruiz
The influenza surveillance and monitoring activity collects and analyzes virological and epidemiological data from countries, areas and territories around the world. WHO relies on the willing participation of countries to share their influenza surveillance data.
The open and transparent sharing of influenza monitoring data by participating countries allows WHO to:
- provide countries, areas and territories with information about influenza transmission in other parts of the world to allow national policy makers to better prepare for upcoming seasons;
- provide data for decision making regarding recommendations for vaccination and treatment;
- describe critical features of influenza epidemiology including risk groups, transmission characteristics, and impact;
- monitor global trends in influenza transmission; and
- inform the selection of influenza strains for vaccine production.
WHO Global Interim Epidemiological Surveillance Standards for Influenza
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The draft is currently under review and a final version will be posted soon
Influenza update
Guidance and recommendations
Regional guidelines for influenza surveillance
Articles
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Estimating Age-Specific Cumulative Incidence for the 2009 Influenza Pandemic: a Meta-Analysis of A(H1N1)pdm09 Serological Studies from 19 Countries
pdf, 459kb
January 2013 -
Risk factors for severe outcomes following 2009 Influenza A (H1N1) infection: A Global Pooled Analysis
pdf, 409kb
July 2011 -
Challenges of global surveillance during an influenza pandemic
pdf, 678kb
April 2011