Coming to a country near you.
Over the last few years, it’s been covered here how the WHO’s International Health Regulations (or IHR), have been implemented domestically via the Quarantine Act and Public Health Acts. It’s also been argued that the Public Health Agency of Canada (or PHAC), is effectively a local outpost of WHO.
Source: From 2009: WHO Guidance On IHR Implementation In National Legislation – Canuck Law