Since May 2026, an Ebola virus disease outbreak caused by Bundibugyo virus has been ongoing in the Democratic Republic of the Congo (DRC).
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Surveillance and monitoring
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 29 August - 4 September, and includes updates on Ebola, SARS-CoV-2 variant classification, West Nile virus, Crimean-Congo haemorrhagic fever, dengue, chikungunya, vibrio, Middle East respiratory syndrome, malaria, influenza A (H9N2), and an overview of respiratory virus epidemiology in the EU/EEA.
Communicable disease threats report, 29 August - 4 September, week 36
English (4.84 MB - PDF)
Surveillance and monitoring
This report gives an overview of the countries and areas where dengue cases – and their corresponding case numbers - have been reported to the European surveillance portal for infectious diseases (EpiPulse).
Surveillance and monitoring
Update providing weekly overview of the countries and areas where chikungunya virus disease cases have been reported.
This list below shows the current accommodation sites in EU/EEA countries with which clusters of Legionnaires’ disease have been identified but where the European Legionnaires’ disease Surveillance Network (ELDSNet) is unable to assess the risk of Legionella infection, or where ELDSNet believe there may be increased risk to travellers.
Surveillance and monitoring
Weekly updates with the latest reports on West Nile virus cases in Europe updated every Friday, during the transmission season.
Surveillance and monitoring
Weekly updated overview of reported Crimean-Congo haemorrhagic fever (CCHF) in the EU/EEA countries and areas.
Basic facts about Ebola virus disease, including symptoms, treatment, vaccines, and precautions.
Video
Webinar recording from World Hand Hygiene Day.
A worldwide epidemiological summary of the countries most affected by cholera.
Surveillance and monitoring
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 22 - 28 August, and includes updates on diphtheria, Ebola, swine influenza A(H1N2), respiratory virus epidemiology, Crimean-Congo haemorrhagic fever, dengue, chikungunya virus disease, Vibrio growth, West Nile virus, cholera, poliovirus and expert deployments.
Communicable disease threats report, 22 - 28 August, week 35
English (3.94 MB - PDF)This page lists reports and epidemiological updates on multi-country outbreaks caused by Salmonella Braenderup.
General disease information for public health experts on dengue. Dengue is a mosquito-borne viral disease widely spread in tropical and subtropical regions. The disease is transmitted by Aedes mosquitoes.
ECDC corporate
The European Centre for Disease Prevention and Control’s environmental statement for 2025 builds on the foundation laid in the previous year, highlighting continued progress and new initiatives in the Centre’s journey towards environmental sustainability.
Environmental statement 2025
English (56.66 MB - PDF)
Surveillance and monitoring
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 15-21 August 2026, and includes updates on Ebola, respiratory virus epidemiology in the EU/EEA, swine flu, West Nile virus, Crimean-Congo haemorrhagic fever, dengue, chikungunya, vibrio, influenza, Dermatophilosis congolensis, Salmonella Enteritidis, and measles.
Communicable disease threats report, 15 - 21 August 2026, week 34
English (898.46 KB - PDF)
Surveillance and monitoring
Monthly updates with the latest reports on West Nile virus cases in Europe.
Weekly updates with the latest reports on West Nile virus cases in Europe updated every Friday, during the transmission season.
Update providing weekly overview of the countries and areas where dengue cases have been reported.
Update providing weekly overview of the countries and areas where chikungunya virus disease cases have been reported.
Podcast
In this episode of ECDC: On Air, we take a closer look at the mosquitoes making their way across Europe, the diseases they can transmit, and what this changing landscape means for public health. Céline Gossner, explains what is changing and why it matters.
Press release
Europe needs to improve its preparedness and control efforts as the risk of mosquito-borne diseases increases, with West Nile virus (WNV) continuing to spread to new regions and invasive mosquito species becoming established in more parts of Europe.
Surveillance and monitoring
Europe is experiencing longer and more intense transmission seasons for mosquito-borne diseases, including for West Nile virus (WNV) infection as well as dengue and chikungunya virus disease. These developments increase the need for sustained mosquito surveillance and timely, effective control measures, but capacity and organisation vary across countries.
Surveillance and control of Culex mosquitoes and Aedes invasive mosquitoes in Europe: questionnaire findings on current practice and needs
English (1.36 MB - PDF)
Epidemiological update
On 6 August 2026, French public health authorities reported an imported case of Andes hantavirus infection in a traveller from Argentina.
The Advisory Forum advises the Director of the Centre on the quality of the scientific work undertaken by ECDC.