Influenza Virus Characterisation, June 2013
Over the course of the 2012–13 season, A(H1N1)pdm09, A(H3N2) and B/Victoria- and B/Yamagata-lineage influenza viruses have co-circulated in ECDC-affiliated countries. The relative prevalences of each has varied between countries.• Type A and type B viruses have been detected in similar proportions but with type A peaking and declining slightly before type B.• A(H1N1)pdm09 viruses have been detected at approximately twice the level of A(H3N2) viruses.• The vast majority of A(H1N1)pdm09 viruses have remained antigenically similar to the vaccine virus, A/California/07/2009, but continued to show genetic drift with an increasing prevalence of genetic group 6 viruses.• The vast majority of A(H3N2) viruses have been antigenically and genetically similar to cell-propagated A/Victoria/361/2011, the prototype vaccine virus for the 2012–13 influenza season.• Viruses of the B/Yamagata-lineage have predominated over those of the B/Victoria-lineage.• B/Victoria-lineage viruses have remained antigenically similar to cell-propagated reference viruses of the B/Brisbane/60/2008 genetic clade.• B/Yamagata-lineage viruses formed two antigenically distinguishable genetic clades: clade 3 represented by B/Wisconsin/1/2010 (the recommended vaccine component for the 2012–13 influenza season) and, in increasing numbers, clade 2 represented by B/Massachusetts/2/2012 (the recommended vaccine component for the 2013–14 influenza season).
Influenza virus characterisation - Summary Europe, September 2021
22 Oct 2021 - This is the 10th and final report for the 2020-2021 influenza season. As of week 39/2021, only 1 276 influenza detections across the WHO European Region were reported to TESSy.
Cryptosporidiosis - Annual Epidemiological Report for 2018
5 Oct 2021 - For 2018, 20 European Union/European Economic Area (EU/EEA) countries reported 14 299 cryptosporidiosis cases, of which 14 252 were confirmed.
Avian influenza overview May – September 2021
30 Sep 2021 - The 2020–2021 avian influenza epidemic with a total of 3,777 reported highly pathogenic avian influenza (HPAI) detections and approximately 22,900,000 affected poultry birds in 31 European Countries appears to be one of the largest HPAI epidemics that has ever occurred in Europe.