As the list of amber and green countries grows, the UK should expect more inbound international patients.
London treats many patients from Middle Eastern countries such as the United Arab Emirates, Kuwait, Qatar, Saudi Arabia and Bahrain.
Kuwait is on the amber list, as is Saudi Arabia. From August 8, the UAE, including Abu Dhabi and Dubai, moved off the red list to the amber list, as did Bahrain, France, India and Qatar.
Other changes include Romania, Slovakia, and Slovenia moving from amber to green, and Georgia plus Mexico moving from amber to red.
The changes also now allow British citizens to again travel to Dubai.
Green list countries require tests but not quarantine. For amber list countries there is quarantine for 10 days plus taking various tests. Fully vaccinated people in or out do not need to quarantine and have fewer tests.
Travel from red list countries without hotel-isolation remains banned, except for returning UK and Irish nationals. The rules also vary between England, Scotland, Wales and Northern Ireland, with the Channel Islands separate.