Cookie policy

Last updated on 3-5-2018 by Pierre Daubresse

Sciensano’s website uses cookies. A cookie is a small file that Sciensano’s website transfers to your device to allow it to remember specific information about your session while you are connected. This information is only used to make Sciensano’s website more useful for you.Your computer will only share the information in the cookie with Sciensano’s website, and no other website can request it.

There are two types of cookies, session and persistent. Session cookies last only as long as your Web browser is open. Once you close your browser, the cookie disappears. Persistent cookies are stored on your device and remain valid until their set expiry date, unless deleted by the user before the expiry date. Sciensano’s website uses both session and persistent cookies.

Cookies may be set either by the website (first party cookies), or by a third party website (third party cookies). The names of the cookies that Sciensano’s website uses, and the purposes for which they are used, are set out below.

First party cookies

Cookie ID Purpose Lifespan
UUID Random value assigned to a visitor of the website in order to identify him. This cookie is used by the system to know whether a user has closed the alerts displayed on the pages, and which ones have been closed. One year
has_js Determines whether or not JavaScript is enabled so that our system can more efficiently perform operations to enhance the user experience. End of session
cookie-agreed Records the fact that you as a user have agreed to accept cookies from this site. 100 days

Important note: UUID and has_js cookies are automatically set on your computer, whether you have agreed the use of cookies or not. If you want to delete any of these cookies, please refer to this page for instructions.

Third-party cookies

Cookie ID Purpose Origin Lifespan
NID The NID cookie contains a unique ID Google uses to remember your preferences and other information, such as your preferred language (e.g. English), how many search results you wish to have shown per page (e.g. 10 or 20), and whether or not you wish to have Google’s SafeSearch filter turned on. 6 months
_ga Used by Google Analytics to distinguish users. 2 years
_gid Used by Google Analytics to distinguish users. 24 hours
_gat Used by Google Analytics to throttle request rate 1 minute



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