Since the beginning of the 2023 transmission season and as of 13 December 2023, EU/EEA countries have reported 707 human cases of WNV infection, 152 outbreaks among equids and 247 outbreaks among birds.
Since the beginning of the 2023 transmission season and as of 13th December 2023, EU/EEA countries have reported 707 human cases of WNV infection in Italy (336), Greece (162, of which 1 with unknown place of infection), Romania (103), France (43), Hungary (29), Spain (17), Germany (6), Croatia (6) and Cyprus (5).
Japanese encephalitis virus is present in Asia and Oceania, from Japan to India, Pakistan and Australia. Outbreaks are erratic and spatially and temporally limited phenomena, occurring quite unpredictably. The virus is a leading cause of viral encephalitis in Asia, with 30 000 to 50 000 cases reported annually.
West Nile virus is a mosquito-borne flavivirus that is maintained in an enzootic cycle between mosquitoes and birds. Humans and horses are incidental dead-end hosts.
Sindbis virus is widely and continuously found in insects (the main vectors are Culex and Culiseta mosquitoes) and vertebrates in Eurasia, Africa, and Oceania. ECDC factsheet for health professionals
ECDC initiated a survey of EU/EEA countries to evaluate preparedness planning and risk mitigation initiatives implemented at the country level for people exposed to highly pathogenic avian influenza virus A(H5N1).
This protocol sets out measures for the follow-up and management of individuals exposed to infected animals and human cases of avian influenza, and for the public health management of possible and confirmed human cases.
To assess the level of preparedness of EU/EEA Member States to respond to zoonotic avian flu outbreaks, ECDC has carried out two surveys - one assessing the laboratory capacity for molecular diagnosis and characterisation of zoonotic influenza viruses, and the other focusing on measures applied to protect exposed people during outbreaks of highly pathogenic avian influenza.
The aim of this survey was to review the expertise, capabilities and capacities for detection and characterisation of avian and other zoonotic influenza viruses in national influenza reference laboratories in the European Union/European Economic Area (EU/EEA), in members of the European Reference Laboratories for influenza (ERLINet), and in EU Enlargement policy countries.
This scientific report provides an overview of highly pathogenic avian influenza (HPAI) virus detections in poultry, captive birds, wild birds, and mammals that occurred in and outside Europe between 2 September and 1 December 2023, as well as human cases due to avian influenza viruses up until 1 December 2023.