BERLIN — Germany is declaring Crete and other Greek islands popular tourist destinations a “high-risk area” for COVID-19, meaning that many people who haven’t been vaccinated will need to quarantine upon arrival.

Germany’s national disease control center, the Robert Koch Institute, says Crete and Greece’s southern Aegean islands will be added to the list of “high-risk areas” on Tuesday. Kosovo and North Macedonia, as well as part of Ireland and Dominica, will be added to the list on Sunday.

However, parts of Spain, including the Canary Islands, Catalonia and the Valencia region, are being dropped from the list.

People arriving from “high-risk areas” — the lower of two German COVID-19 risk categories — must quarantine for 10 days if they haven’t been vaccinated or recently recovered. That period can be cut to five days with a negative test.