Jersey's government says it is considering re-categorising Poland on its Safe Travel traffic light system.
The country is currently classed as green, meaning there's no requirement for arriving passengers to self-isolate.
The authorities say that could change in the next few days if the number of Covid-19 cases there continues to rise.
Switzerland has been upgraded to amber, requiring isolation until a second negative coronavirus test.
Aruba, the Faroe Islands and the Turks and Caicos Islands have become red countries, demanding 14 days' quarantine.
You can find the full lists of green, amber and red countries on the government website.

'Momentous' week in Jersey's States
Plans to charge wealthiest patients for medical travel
Railway Walk reopens 'several weeks' ahead of schedule
New bar opening at former Rojo and X site to evolve Jersey's nightlife
Former Chief Minister seeks re-election
Château Vermont to become home to new music campus
St Saviour break and entry suspect pictured posing on motorbike
'Overstretched' neurology department following under-experienced managers