People typically had to self-isolate if any of the following reasons applied:  

  • they had symptoms of COVID-19  
  • they had a positive COVID-19 test  
  • they had been in contact with someone who tested positive  
  • they had travelled from a country not on the banned travel list but had 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 “quarantine”, “in quarantine” or “quarantining” unless referring to quarantine after travelling from a country on the banned travel list. See quarantine.