Threats and outbreaks

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 cases treble in 2017

From 4 643 to 14 451: measles cases in the EU increased threefold in 2017, mostly in unvaccinated individuals (see distribution by country in December 2017). Outbreaks are still ongoing in France, Sweden and the UK.

Read the overview

Salmonella Agona outbreak associated with infant formula milk

As of 17 January, the outbreak affected 39 children under one year of age: 37 in France, one in Spain and one in Greece. As long as contaminated products are circulating, new cases may still be detected.

Joint ECDC-EFSA risk assessment

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Weekly threat reports (CDTR)
Epidemiological updates
Risk assessments
Maps/Data
ECDC comments

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

Yellow fever in Brazil and the risk for travellers

Measles cases treble in 2017

Salmonella Agona outbreak associated with infant formula milk

Rapid risk assesment: Dengue outbreak in Réunion, France

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

Rapid risk assessment: Acute encephalitis associated with infection with Borna disease virus 1, Germany

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

Multi-country outbreak of Listeria monocytogenes serogroup IVb, multi-locus sequence type 6, infections probably linked to frozen corn

Communicable disease threats report, 8-14 April 2018, week 15

Communicable disease threats report, 1-7 April 2018, week 14

Communicable disease threats report, 25-31 March 2018, week 13

Communicable disease threats report, 18-24 March 2018, week 12

Communicable disease threats report, 11 - 17 March 2018, Week 11

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

Salmonella Agona outbreak associated with infant formula milk

Rapid risk assesment: Dengue outbreak in Réunion, France

Rapid risk assessment: Acute encephalitis associated with infection with Borna disease virus 1, Germany

Multi-country outbreak of Listeria monocytogenes serogroup IVb, multi-locus sequence type 6, infections probably linked to frozen corn

Rapid risk assessment: Risk of measles transmission in the EU/EEA

Rapid risk assessment: Outbreak of yellow fever in Brazil, Third 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

Zika transmission in South East Asia

Zika transmission in the Caribbean

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

WHO statement: 12th meeting of the Emergency Committee under the International Health Regulations Emergency (IHR) regarding the international spread of poliovirus

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

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