People typically have to self-isolate if any of the following reasons apply: 

  • they have symptoms of COVID-19 
  • they have a positive COVID-19 test 
  • they have been in contact with someone who has tested positive 
  • they have travelled from a country not on the banned travel list but have to self-isolate 

Use self-isolation (noun). 

Use self-isolate or self-isolating (verb). 

Include the link to the GOV.UK guidance pages for the first mention in each section. 

Do not use quarantinein quarantine or quarantining unless referring to quarantine after travelling from a country on the banned travel list. See quarantine.