Excerpt (via Google Translate):
Jørgen Schøler Kristensen, Medical Director at Aarhus University Hospital, explains the error as follows:
– When patients with a civil registration number beginning with 0 had to be entered, the civil registration number was declared invalid if a hyphen was missing. So 26 percent of the civil registration numbers we have reported have not been entered correctly, so they have not received the invitation in their e-box to be vaccinated as they should have had, says Jørgen Schøler Kristensen.
Patients born the first nine days of any month and having been unlucky with a hyphen were forgotten.
Author(s): Jens Christian Thaysen
Publication Date: 19 March 2021
Publication Site: Århus Stiftstidende