1 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Introduction to Group Work 2 Summary of Seasonal Influenza in the WPR Virological review

2 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Group Work 2 Group D Grand Ballroom Anne-Claire Gourinat Jean Paul Grangeon Sue Huang Vito Roque Remigio Olveda Juan Lopez Nobuhiko Okabe Prem Sanjeev Singh Harpal Singh Wilina Lim Ann Moen Emma Denehy

3 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Overall Comments Many challenges noted which has resulted in the objectives of the review changing The time period is too short to determine seasonality, particularly with the pandemic Care needs to be taken not misrepresent countries/areas by being too generalised –countries/areas with small data sets are not being represented (see results for more information) –Tropics – no distinct seasonality except for a few countries Need to create the paper with focus on public health significance (not publication) – at least to stimulate thinking of a regional goal and moving forward Start with a WPRO map, define NH, Tropics and SH

4 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Results Section Consider getting another two year worth of data ( ) or more, if feasible Look at each predominate virus separately by type by zone Put ILI and laboratory confirmed data on the same graph If the purpose is for vaccine recommendation, include antigenic strains by zones –Discussion could then concentrate on matching circulating strain with vaccine match – if they don’t match, look into how this can improved in the future.

5 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Results Use % of positivity rather than number of positive cases Map to show antigenic strains and how they move, year by year in the region Include data on antiviral susceptibly, sequence/genetic data, antigenic information, hospital based ARI admissions and mortality

6 Emerging Disease Surveillance and Response (ESR) WHO Western Pacific Regional Office (WPRO) Discussion Section How we can use the data and lessons learnt Paper is challenging, however there is value is presenting it as a region (with regional goal/vision of 201X in mind) –Use paper to put forward recommendations for future data improvements Perhaps annual NIC reports using a standardized format, after 5 years it is easy to report on this information Templates and harmonised case definitions will assist data collection