Switzerland has dropped a requirement for arrivals from red list countries including the UK to quarantine for 10 days.
However, all arrivals will be required to show a negative PCR test prior to entry and either a PCR or antigen test between the fourth and seventh day after arrival.
The move is part of a series of measures to attempt to control the spread of Covid, which include the use of vaccine passports, a wider mask-wearing mandate and an encouragement to work from home.
A statement said: “In order to continue to prevent the new Omicron variant from entering the country as far as possible, a stricter testing regime will now apply for all arrivals into Switzerland.
“This testing requirement also applies to those who have been vaccinated or have recovered from the disease.
“In addition to taking a PCR test before travelling, a second test (PCR test or rapid antigen test) must be carried out between the fourth and seventh day after arrival.
“This test ensures that infected persons who have contracted the virus shortly before or during travel are detected. Test costs must be borne by the traveller.”
It added: “With effect from Saturday, 4 December, there will be no countries on the quarantine list.”
Switzerland had previously confirmed that those transiting to other countries would not be required to quarantine if they remained in the country for less than 24 hours.