Weekly influenza surveillance overview January 7, 2011 - Week 52
Generally, reporting of influenza has been less complete over weeks 51 and 52 due to the holiday period, which reduces consulting rates and reporting to national centres and subsequently onto ECDC. Nevertheless, in week 52/2010, 15 of the 25 countries reported increasing trends of influenza activity.
Threat Assessment Brief: Eurasian avian-like A(H1N1) swine influenza viruses
A recently published study conducted between 2011 and 2018 in China, and based on surveillance data in pigs, identified an emerging genotype 4 (G4) reassortant Eurasian avian-like (EA) A(H1N1) swine influenza virus that contains internal genes from the human A(H1N1)pdm09 and North American triple-reassortant (TR) lineage-derived internal genes.
Protocols for cohort database studies to measure influenza vaccine effectiveness in the EU and EEA Member States
Timeline on the pandemic (H1N1) 2009
This timeline of the 2009 Influenza Pandemic runs from the first described cases in California in April 2009 to July 10th 2010 when the WHO Director General declared that the pandemic was over. It describes events from the perspective of European Union and European Economic Area institutions and countries. However it also contains global events of relevance to Europe, such as declarations of phase changes. Where possible, links are given to primary published documentation. Events, decisions and meetings taking place at a European Level are especially emphasised.
Technical report In Brief: Narcolepsy in association with pandemic influenza vaccination
This report summarises the results from two epidemiological studies to investigate a possible association between an unexpected increase in narcolepsy cases following the use of the influenza A(H1N1)pdm09 vaccines. The studies were conducted by the Vaccine Adverse Event Surveillance and Communication (VAESCO) Consortium under the auspices of ECDC and undertaken in Denmark, Finland, France, Italy, the Netherlands, Norway, Sweden and the United Kingdom. This Technical Report In Brief accompanies the full Report ‘Narcolepsy in association with pandemic influenza vaccination- A multi-country European epidemiological investigation’.