"This “European surveillance network for influenza in pigs (ESNIP) 3” will maintain and expand surveillance networks established during previous EC concerted actions (ESNIP 1, QLK2-CT-2000-01636; ESNIP 2, SSPE-022749). Three work packages (WP 2, 3, 4) aim to increase the knowledge of the epidemiology and evolution of swine influenza (SI) virus (SIV) in European pigs through organised field surveillance programmes (WP2). Virus strains detected in these programmes will be subjected to detailed characterisation both antigenically (WP3) and genetically (WP4) using standardised methodology. Specifically this will involve timely information on genomic data and generation of antigenic maps using the latest technology. These analyses will provide significant and timely added value to knowledge of SIV. A strong focus will be monitoring spread and independent evolution of pandemic H1N1 2009 virus in pigs. All these data will in turn be used to improve the diagnosis of SI by updating the reagents used in the recommended techniques (WP2). The virus bank and electronic database that were established during ESNIPs 1 and 2 will also be expanded and formally curated with relevant SIV isolates and information for global dissemination within and outwith the consortium (WP5). ESNIP 3 represents the only organised surveillance network for influenza in pigs and seeks to strengthen formal interactions with human and avian surveillance networks previously established in ESNIP 2. A timely and transparent interaction with these networks will be a key output. These approaches are entirely consistent with improved pandemic preparedness and planning for human influenza whilst providing an evidence base for decisions in relation to veterinary health. The project consortium consists of 24 participants, which contribute a blend of different specialism’s and skills ensuring multi-disciplinary cutting-edge outputs. The vast majority of the partners are actively working with SIV including in a field setting. Twenty-one participants are from 11 EU member states, seven of which were actively involved in ESNIP 2. Co-operation with partners in China and North America will continue to promote a greater understanding of the epidemiology of SIVs at a global level."