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Portugal is a popular holiday destination for Brits
Portugal remains off the list of countries that the government has exempted from quarantine restrictions.
In changes that apply to England, travellers from Estonia, Latvia, Slovakia, Slovenia and St Vincent and the Grenadines won't have to isolate.
It takes the list of countries who do not face travel restrictions into England to 80 nations.
The government also said it will update guidance weekly, meaning rules could change while people are away.