Which international advice is much stronger than the NHS guidance? e.g. CDC is the greater of 7 days since symptoms start or 72 hours after symptoms end: https

Which international advice is much stronger than the NHS guidance? e.g. CDC is the greater of 7 days since symptoms start or 72 hours after symptoms end: https://www.cdc.gov/coronavirus/2019-ncov/hcp/disposition-in-home-patients.html https://www.cdc.gov/coronavirus/2019-ncov/hcp/disposition-in... My local (Canada) guidance is greater of 10 days or end of symptoms: https://www.alberta.ca/isolation.aspx https://www.alberta.ca/isolation.aspx