Document is current

Article History

Received: 17 November 2025

Accepted: 14 February 2026

First Online: 27 February 2026

Declarations

:

: Collection of data is allowed by the ethical committee of Sciensano and the ‘Queen Fabiola Children’s University Hospital, Brussels’ and the commission for the protection of the privacy (last consultation can be found here). A letter of information for the patient, the storage period, the right to examine and correct own data and the contact details of the person to contact to exercise those rights was provided to all physicians to make it visible to patients. All data retrieved by the surveillance are saved on the secured server of Sciensano or the secured Health Data platform, depending on the used dataflow.

: Not applicable.

: The authors declare no competing interests.