urn:ddi:int.example:64c8e194-6fa3-4ef3-b9bd-4c13a2fa3fd9:1 int.example 64c8e194-6fa3-4ef3-b9bd-4c13a2fa3fd9 1 fdz@dezim-institut.de hlt0006x01-hlt0006x03 hlt0006x01-hlt0006x03 hlt0006x01-hlt0006x03 Covid Infektion Ort Covid infection location Covid infection location Wie sicher sind Sie sich, dass Sie sich an folgenden Orten mit COVID-19 angesteckt haben? How sure are you that you were infected with COVID-19 at the following locations? How sure are you that you were infected with COVID-19 at the following locations?