Scott Nisbet, chief executive of the Globus family of brands, said: “The health and safety of our travellers is our number one priority.

“We have continued to enhance on-trip safety standards throughout the pandemic to ensure we’re ready to welcome guests back to travel when the world is ready. Today, we’re unveiling new pre-trip requirements.”

Under this new regime, passengers will have to provide proof of either a Covid vaccination at least 14 days before travel, a negative test result within 72 hours of travel, or recovery from a confirmed Covid diagnosis within three months of travel.

If they cannot provide one of these verifications, passengers will not be able to join a holiday with Cosmos and the other Globus brands.

The brands will also organise and cover the cost of any additional Covid testing required for guests to return to their home countries, as well as any on-trip tests if passengers show symptoms of the virus. All of these new protocols will take effect in April.

The company has also increased flexibility for customers by reducing the final payment window for all brands to 45 days before departure.