Threats and outbreaks

Dengue outbreak in Réunion

With 5747 cases since the beginning of 2018, this outbreak is of unusual size and duration. The fact that the implicated vector in the outbreak in Réunion is Ae. albopictus increases the likelihood of sustained local transmission in continental EU

Multi-country outbreak of Listeria

As of 8 June 2018 and since 2015, 47 listeriosis cases have been confirmed as part of this outbreak, nine of them resulting in death. Frozen corn and possibly other frozen vegetables produced in a company in Hungary are the likely source.

Joint ECDC-EFSA risk assessment

Yellow fever in Brazil and the risk for travellers

Travellers to areas at risk of yellow fever in Brazil should check their vaccination status and if necessary get vaccinated

Measles: check your vaccination status before travelling in the EU

The highest number of cases to date are in Romania (3 284), France (2 306), Greece (2 097) and Italy (1 258) but many other EU countries are experiencing measles outbreaks.

Outbreak reports and data

Threats and outbreaks by disease and country

ECDC monitors current infectious disease outbreaks and assesses the risk to public health in Europe. ECDC experts provides technical support to the EU-level response to such threats.

Interim surveillance case definitions for reporting in EU

During outbreaks, ECDC issues draft interim case definitions for surveillance, to support classifying cases for epidemiological reporting in EU.

ECDC in the field

ECDC supports outbreak investigations through deploying ECDC missions, supporting the EU Med Corps and facilitating national experts participation in WHO and other missions.

Outbreak tools

ECDC has produced several tools to support and guide outbreak preparedness, investigation and response activities.

Epidemic intelligence

Epidemic intelligence can be described as the systematic collection and collation of information from a variety of sources. See a list of epidemiological sources and tools used by ECDC

Toolkit for investigation and response to food and waterborne disease outbreaks

Series of tools that can be useful during an investigation of a European outbreak.

View the toolkit

Epidemic intelligence and outbreak response

ECDC supports the response to infectious disease threats in the EU through rapid risk assessments and filed outbreak missions

Read about ECDC mandate

Follow @ECDC_Outbreaks

Follow the ECDC outbreak channel on Twitter for the latest epidemiological updates, data on outbreaks and risk assessments.

Follow @ECDC_Outbreaks

European Centre for Disease Prevention and Control

An agency of the European Union

Threats and outbreaks

Dengue outbreak in Réunion

Multi-country outbreak of Listeria

Yellow fever in Brazil and the risk for travellers

Measles: check your vaccination status before travelling in the EU

Communicable disease threats report, 15-21 July 2018, week 29

Communicable disease threats report, 8-14 July 2018, week 28

Carbapenemase-producing (OXA-48) Klebsiella pneumoniae ST392 in travellers previously hospitalised in Gran Canaria, Spain

Rapid risk assessment: Dengue outbreak in Réunion, France

Communicable disease threats report, 15-21 July 2018, week 29

Communicable disease threats report, 8-14 July 2018, week 28

Carbapenemase-producing (OXA-48) Klebsiella pneumoniae ST392 in travellers previously hospitalised in Gran Canaria, Spain

Rapid risk assessment: Dengue outbreak in Réunion, France

Listeria monocytogenes outbreak: 47 cases including 9 deaths

Statement of the Seventeenth IHR Emergency Committee Regarding the International Spread of Poliovirus, 10 May 2018

Ebola outbreak in Democratic Republic of the Congo: the risk of introduction to the EU remains very low

Epidemiological update - dengue in Réunion

Cross-border health threats: assessment, evidence-based decision making & communication

ECDC 10 years

Acute respiratory pandemics: how to plan for and manage

Yellow fever distribution and areas of risk in Brazil, as of 13 March 2018

Yellow fever distribution and areas of risk in Brazil, as of 28 February 2018

Yellow fever distribution and areas of risk in Brazil, as of 16 January 2018

Current Zika transmission worldwide

Carbapenemase-producing (OXA-48) Klebsiella pneumoniae ST392 in travellers previously hospitalised in Gran Canaria, Spain

Rapid risk assessment: Dengue outbreak in Réunion, France

Multi-country outbreak of Listeria monocytogenes serogroup IVb, multi-locus sequence type 6, infections linked to frozen corn and possibly to other frozen vegetables – first update

Statement of the Seventeenth IHR Emergency Committee Regarding the International Spread of Poliovirus, 10 May 2018

Rapid risk assessment: Carbapenem-resistant Enterobacteriaceae - first update

Communicable disease threats report, 15-21 July 2018, week 29

Communicable disease threats report, 8-14 July 2018, week 28

Communicable disease threats report, 1-7 July 2018, week 27

Communicable disease threats report, 24-30 June 2018, week 26

Communicable disease threats report, 17-23 June 2018, Week 25

Epidemiological update - dengue in Réunion

Epidemiological update: multi-country outbreak of Listeria monocytogenes serogroup IVb, multi-locus sequence type 6 infections

Epidemiological update: hepatitis A outbreak in the EU/EEA mostly affecting men who have sex with men

Epidemiological update: Multi-country outbreak of Listeria monocytogenes PCR serogroup IVb, MLST 6

Epidemiological update: West Nile virus transmission season in Europe, 2017

Carbapenemase-producing (OXA-48) Klebsiella pneumoniae ST392 in travellers previously hospitalised in Gran Canaria, Spain

Rapid risk assessment: Dengue outbreak in Réunion, France

Multi-country outbreak of Listeria monocytogenes serogroup IVb, multi-locus sequence type 6, infections linked to frozen corn and possibly to other frozen vegetables – first update

Rapid risk assessment: Emergence of resistance to ceftazidime-avibactam in carbapenem-resistant Enterobacteriaceae

Rapid risk assessment: Carbapenem-resistant Enterobacteriaceae - first update

Yellow fever distribution and areas of risk in Brazil, as of 13 March 2018

Yellow fever distribution and areas of risk in Brazil, as of 28 February 2018

Yellow fever distribution and areas of risk in Brazil, as of 16 January 2018

Current Zika transmission worldwide

Zika transmission in South East Asia

Statement of the Seventeenth IHR Emergency Committee Regarding the International Spread of Poliovirus, 10 May 2018

WHO recommendations for influenza virus vaccine composition for the 2018-2019 Northern hemisphere season

WHO recommendations for influenza virus vaccine composition for the 2018 southern hemisphere influenza season

​WHO recommendations for influenza virus vaccine composition for the 2017-18 northern hemisphere season

Mutation of avian influenza A(H7N9): now highly pathogenic for poultry but risk of human-to-human transmission remains low

Outbreak reports and data

Threats and outbreaks by disease and country

Interim surveillance case definitions for reporting in EU

ECDC in the field

Outbreak tools

Epidemic intelligence

Toolkit for investigation and response to food and waterborne disease outbreaks

Epidemic intelligence and outbreak response

Follow @ECDC_Outbreaks

About us

Work with us

Contact ECDC

Follow us:

WHO recommendations for influenza virus vaccine composition for the 2017-18 northern hemisphere season