Based on reports, beginning on the 24th of November 2021, the countries of the UK and the US will recognize all vaccines on the World Health Organization's Emergency Use Listing (WHO EUL), including updated 3, Sinovac, Sinopharm Beijing and Covaxin.
The full list (approved vaccines for inbound travel) will include:
1. Pfizer BioNTech
2. Oxford AstraZeneca (including Covidshield and Vaxzevria)
3. Moderna (including Takeda)
4. Janssen (J&J)
5. Sinovac
6. Sinopharm Beijing
7. Covaxin
With that, all travellers (to the UK) who have been fully-vaccinated and have received their vaccine cert, will not be required to take a pre-departure test, a day 8 test or self-isolate upon arrival.
They would only need to take 1 post-arrival test, and a confirmatory PCR test (free), if tested positive.