Acknowledgements
The authors thank the participants and the organizers of the influenzanet consortium (www.influenzanet.eu).
Financial & competing interests disclosure
Influenzanet forms part of the European Commission 7th Framework Integrated Project EPIWORK (grant number 231807). The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.
No writing assistance was utilized in the production of this manuscript.