who

https://canberradaily.com.au/what-you-should-know-about-the-world-health-organizations-plans-for-you-this-may/

Article 42 of the proposed IHR amendments includes that the WHO Member States (which includes Australia) would be bound to do what the WHO advises:

‘Health measures taken pursuant to these Regulations shall be initiated and completed without delay and applied in a transparent and non-discriminatory manner. State Parties shall take all practicable measures, in accordance with national laws, to engage with non-State actors operating in their respective jurisdictions with a view to achieving compliance with, and implementation of, health measures taken pursuant to these Regulations.’

The WHO directives or health measures listed in the proposed IHR amendments (Article 18, IHR) may include:

• proof of medical examination and any laboratory analysis;
• medical examinations;
• proof of vaccination or other prophylaxis;
• vaccination or other prophylaxis;
• place suspect persons under public health observation;
• implement quarantine or other health measures for suspect persons;
• implement isolation and treatment where necessary of affected persons;
• implement tracing of contacts of suspect or affected persons;
• refuse entry of suspect and affected persons;
• refuse entry of unaffected persons to affected areas;
• implement exit screening and/or restrictions on persons from affected areas.