FreddyB

There are 2 separate issues here which are more or less independent. Firstly, Thailand remains on the UK red list (likely due to high positivity rate and limited genomic sequencing to identify variants). As such, vaccination status is irrelevant for anyone travelling to UK from Thailand. All arrivals from Thailand (even those who were originally vaccinated in UK) will need to quarantine in a hotel. Secondly, the UK has a list of countries whose vaccination certificate it will recognise. This is a new list and no red list countries are on this list. There wouldn't be any point in UK including red list countries as vaccination status doesn't affect requirement to quarantine. This is nothing to do with the vaccines used in those countries; it's UK's trust in the vaccination certificate. The UK list includes US, EU, Australia, Antigua and Barbuda, Barbados, Bahrain, Brunei, Canada, Dominica, Israel, Japan, Kuwait, Malaysia, New Zealand, Qatar, Saudi Arabia, Singapore, South Korea, Taiwan or the United Arab Emirates (UAE) Bahrain has approved a wide range of vaccines including Sputnik & Sinopharm. https://covid19.trackvaccines.org/country/bahrain/ UK has been explicit in its concerns about vaccination certificates from India. https://www.ndtv.com/india-news/no-problem-with-indian-vaccine-certificate-says-top-health-official-after-uk-raises-concern-over-the-certificate-2549492 We will likely have to wait until Thailand is removed from UK red list to learn if UK will accept the current vaccination certificate from Thailand.