Cookie policy/Site usage information
What are cookies?
A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.
How to control cookies
Every time you visit ECDC’s websites, you will be prompted to either accept all cookies or only essential cookies. Essential cookies are necessary for the website to function properly.
How do we use cookies?
We use both first-party and third-party cookies. First-party cookies are set and read only by our websites. Third-party cookies are set by domains other than ours and are used for analytics or to integrate external services, such as embedded videos.
To view some of our pages, you will have to accept third-party cookies from external organisations, such as YouTube. This is specified on the relevant pages where you have to accept the specific terms and conditions of the third parties.
Essential cookies
These cookies help make a website usable by enabling basic functions like page navigation and access to secure areas. The website cannot function properly without these cookies.
| Website | Domain | Cookie Name | Service | Purpose | First-Party/ Third Party |
Duration |
| wnv-weekly.ecdc.europa.eu | wnv-weekly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| wnv-weekly.ecdc.europa.eu | wnv-weekly.ecdc.europa.eu | cck1 | Content delivery network (CDN) | Cookie consent preferences done by the user | First-party | 180 days |
| wnv-monthly.ecdc.europa.eu | wnv-monthly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| wnv-monthly.ecdc.europa.eu | wnv-monthly.ecdc.europa.eu | cck1 | Content delivery network (CDN) | Cookie consent preferences done by the user | First-party | 180 days |
| monkeypoxreport.ecdc.europa.eu | monkeypoxreport.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| measles-rubella-monthly.ecdc.europa.eu | measles-rubella-monthly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| chik-weekly.ecdc.europa.eu | chik-weekly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party |
0 |
| chik-weekly.ecdc.europa.eu | chik-weekly.ecdc.europa.eu | cck1 | Content delivery network (CDN) | Cookie consent preferences done by the user | First-party | 180 days |
| chik-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | AGS_ROLES | ArcGIS Online | Optimise map functionality and user experience | First-party | Session |
| chik-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party |
0 |
| cchf-weekly.ecdc.europa.eu | cchf-weekly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| cchf-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | AGS_ROLES | ArcGIS Online | Cookie generated by ArcGIS for interactive maps. | First-party | Session |
| cchf-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party |
0 |
| dengue-weekly.ecdc.europa.eu | dengue-weekly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| dengue-weekly.ecdc.europa.eu | dengue-weekly.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party | Session |
| dengue-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | AGS_ROLES | ArcGIS Online | Cookie generated by ArcGIS for interactive maps. | First-party | Session |
| dengue-weekly.ecdc.europa.eu | gis.ecdc.europa.eu | server | Corporate server availability service | Used by the infrastructure proxy to ensure high availability and load balancing | First-party |
0 |
| ecdc.europa.eu | ecdc.europa.eu | cck | Content delivery network (CDN) of ECDC | Cookie consent preferences done by the user | First-party | 180 days |
| ecdc.europa.eu | ecdc.europa.eu | pa | Local Storage: Pingdom service provided by DIGIT | Check availability of the website. Pingdom cannot track users | Third-party | 30 days |
| ecdc.europa.eu | ecdc.europa.eu | pa_enabled | Local Storage: Pingdom service provided by DIGIT | Check availability of the website. Pingdom cannot track users | Third-party | 30 days |
| ecdc.europa.eu | gisco-services.ec.europa.eu | gisco-waf-prod-affinityCORS | European Commission’s Geo information system (GISCO). | Maintain session continuity and stable performance across the infrastructure. | Third-party | Session |
| ecdc.europa.eu | gisco-services.ec.europa.eu | gisco-waf-prod-affinity | European Commission’s Geo information system (GISCO). | Maintain session continuity and stable performance across the infrastructure. | Third-party | Session |
| vaccinecoverage.ecdc.europa.eu | app.powerbi.com | ai_user | Microsoft Application Insights | Detects how many people used the app and its features. Users are counted using anonymous IDs. | Third -party | 365 days |
| vaccinecoverage.ecdc.europa.eu | app.powerbi.com | ai_session | Microsoft Application Insights | Detects how many sessions of user activity have included certain pages and features of the app. | Third-party | 30 minutes |
| vaccinecoverage.ecdc.europa.eu | app.powerbi.com | WFESessionId | Power BI Web Front-End | Enables/maintains a Power BI web session (Power BI web front-end, a Microsoft tool). | Third-party | Session |
| vaccinecoverage.ecdc.europa.eu | app.powerbi.com pbivisuals.powerbi.com appsource.powerbi.com |
ARRAffinity ARRAffinitySameSite |
Azure App Service | Azure Infrastructure cookie to route a user’s session consistently to the same server. Prevents session interruptions and ensures reliability. You see either the ARRAffinity or ARRAffinitySameSite cookie depending on your browser. | Third-party |
Session |
| vaccinecoverage.ecdc.europa.eu | app.powerbi.com | cookietest | Power BI | Checks whether the browser accepts cookies; used for simple capability detection. | Third-party | Session |
Optional cookies
These cookies enable the site to remember your preferences (such as user name, language, etc.) for a certain period of time. That way, you don’t have to re-enter them when browsing around the site during the same visit.
| Website | Domain | Cookie Name | Service | Purpose | First-Party/ Third Party |
Cookie Policy | Duration |
| wnv-weekly.ecdc.europa.eu | wnv-weekly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| wnv-monthly.ecdc.europa.eu | wnv-monthly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| monkeypoxreport.ecdc.europa.eu | monkeypoxreport.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| measles-rubella-monthly.ecdc.europa.eu | measles-rubella-monthly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| chik-weekly.ecdc.europa.eu | chik-weekly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| cchf-weekly.ecdc.europa.eu | cchf-weekly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| dengue-weekly.ecdc.europa.eu | dengue-weekly.ecdc.europa.eu | _pk_ses# | Corporate web analytics service | Identifies the pages viewed by the same user during the same visit. (anonymously – no personal information is collected on the user). |
First-party | 30 minutes | |
| ecdc.europa.eu | almetric.com | _ga | Google Analytic Service used by Almetric | Web statistics for Almetric | Third-party | https://www.altmetric.com/privacy-policy/ | 13 months |
| ecdc.europa.eu | Slideshare | ECDC uses Slideshare to show PowerPoint presentations. Note that Slideshare belongs to LinkedIn, hence, when visitors uses Slideshare, they are thereby agreeing to LinkedIn's privacy policy and user agreement. LinkedIn collects all the personal details users have provided to their services, in addition, LinkedIn uses cookies and personal data to personalise services and advertisements. LinkedIn also forwards users information to employers who have 'enterprise accounts'. |
Third-party | https://www.slideshare.net/ | |||
| ecdc.europa.eu | Vimeo | The video is behind a shield. The user has to first accept Vimeo cookies before the video plays. The cookie collects data on the users’ visits to the website, such as which videos were watched. Vimeo collects data that may include the visitor’s IP address, technical information about the users’ device (browser type operating system, etc), web page visited and search terms (within the Vimeo website). |
Third-party | https://vimeo.com/cookie_policy | |||
| ecdc.europa.eu | WhatFix | ECDC uses WhatFix to provide built-in tutorials in some if its externally facing applications. WhatFix uses cookies to collect information from users that visit ECDC’s websites. WhatFix uses essential cookies. You may disable these by changing your browser settings, but this may affect how the website functions. WhatFix uses Google Analytics cookies to help improve its functionalities by collecting and reporting information on how you use the website, however the information collected does not contain any personally identifiable information. | Third-party | https://whatfix.com/cookie-policy/ | |||
| ecdc.europa.eu | YouTube | ECDC uses the YouTube video embed to play video content on its websites. The video is behind a shield. The user has to first accept YouTube cookies before the video plays. The cookie collects data on the users’ visits to the website, such as which videos were watched. YouTube collects data that may include the visitor’s IP address, technical information about the users’ device (browser type operating system, etc), web page visited and search terms (within the YouTube website). |
Third-party | https://policies.google.com/technologies/types?hl=en | |||
| ecdc.europa.eu | Pingdom | This application keeps track of our websites’ performance and makes sure that we get an alert if any of the websites go down. | Third-party | https://documentation.solarwinds.com/en/success_center/pingdom/content/rum/about_rum.htm | |||
| ecdc.europa.eu | Spotify | ECDC uses the Spotify embed application to play audio content for its podcasts. The application is behind a shield. The user must first accept Spotify cookies before the podcast plays. The cookie collects data on the users’ visits to the website, such as which podcasts were listened. Spotify collects data that may include the visitor’s IP address, technical information about the user’s device (browser type operating system, etc), web page visited and search terms (within the Spotify website) |
Third-party | https://www.spotify.com/se/legal/cookies-policy/ |
Page last updated
19 Nov 2025