Public Health England's exaggerated death statistics are a scandal that has fed fear. Woefully misleading figures have only made it harder to tackle the pandemic and to get the country moving again.
the reality is that most deaths occur to over 65’s with previous health condition, The fatality rate in healthy under 75’s is negligible. Children virtually zero . Age is a factor , obesity is a factor and previous health conditions are factor. And this apples in all countries
This UK Government is using a traffic light system to decide who should be quarantined and Thailand is one of them countries which is in the Red light zone so you will need to Quarantine on your return to the UK