HSN - Homestay Network recommends all students/guests purchase and maintain their own Health Insurance. Australia has a world class health system, however if you are not a Australian Citizen or resident you do not have the Medicare system - the national helath system. If you do not have your own Health Insurance you will have to meet the full cost any and all medical treatment you receive in Australia.
The link below will take you to a website that allows you to compare Policies offered by a number of Health Insurers operating in Australia.
HSN - Homestay Network neither endorses nor recommends any particular supplier or provider.