If a traveler was coming to Germany from a location not listed as a Risikogebiet by Germany's RKI but transited through a place that was listed as a Risikogebiet would they be subject to quarantine when they arrive in Germany? For instance, if they changed trains at Brussels-South railway station (Brussels region is currently a risk area as per the RKI) or changed planes an a Paris airport (Île-de-France is currently a risk area as per the RKI).
Currently, this FAQ from the German Health Ministry states:
Who is required to enter home quarantine when travelling to the Federal Republic of Germany?
Anyone who enters the Federal Republic of Germany having spent time in a risk area up to 14 days before their arrival is obliged to proceed directly to their own home or another suitable accommodation and self-isolate there for 14 days. This does not apply if the person only travelled through a risk area without spending time there.
However, looking at the Einreiseverordnung of individual Länder such as the current one for NRW this distinction is less clear.
Personen, die auf dem Land-, See-, oder Luftweg aus dem Ausland in das Land Nordrhein-Westfalen einreisen und sich zu einem beliebigen Zeitpunkt innerhalb von 14 Tagen vor Einreise in einem Risikogebiet nach Absatz 3 aufgehalten haben, sind verpflichtet, unverzüglich das für sie zuständige Gesundheitsamt zu kontaktieren und auf ihren Aufenthalt in einem Risikogebiet nach Absatz 3 hinzuweisen.
Google Translate translates the above to
Persons who enter the state of North Rhine-Westphalia by land, sea or air from abroad and have stayed in a risk area according to paragraph 3 at any time within 14 days prior to entry are obliged to do so immediately for to contact the responsible health department and to inform them about their stay in a risk area according to paragraph 3.
However, the key verb in the original German text is aufhalten which can depending on context can either mean
- to stay (giving some leeway that transit stops are exempt) or
- to stop implying transit stops aren't OK but driving through non-stop is OK or
- to be implying any physical presence triggers the quarantine obligation.
What is actually allowed?