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Fifth update of the risk assessment on human infection with avian influenza A(H7N9) virus, summarising the epidemiological and virological information on the disease in China and Canada, and assessing the risk to public health in the EU/EEA.

This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 9 July - 15 July 2017 and includes updates on measles, influenza A(H7N9), poliomyelitis, West Nile fever, rubella, salmonella and cyclosporiasis.

The “Avian influenza overview” report is published quarterly and provide an update of the developments of avian influenza viruses in EU/EEA and worldwide, in particular with a view to describe the evolution of virus spread from certain regions towards the EU. In case of significant changes in the epidemiology of avian influenza, these reports could be needed more frequently.

The report is published jointly by the European Food Safety Authority (EFSA), the European Centre for Disease Prevention and Control (ECDC) and the European Union Reference Laboratory for Avian influenza (EURL). Avian influenza is an infectious viral disease in birds, including domestic poultry. Avian influenza is mainly found in birds, but under certain circumstances infections can also occur in humans even though the risk is generally very low.

The ECDC Communicable Disease Threats Report (CDTR) is a weekly bulletin for epidemiologists and health professionals on active public health threats. This issue covers the period 10 November - 16 November 2019 and includes updates on West Nile fever, influenza A(H9N2), multicountry influenza, Ebola virus disease and Salmonella Mikawasima . Access the full set of maps, graphs and visuals for the CDTR at: http://ecdc.europa.eu/cdtr