Medicare is the publicly-funded universal health care insurance scheme in Australia, operated by the nation's social security department, Services Australia. Medicare is the principal way Australian citizens and permanent residents access most health care services in Australia. The scheme either partially or fully cover the cost of most primary health care services in the public and private health care system. All Australian citizens and permanent residents have access to fully covered health care in public hospitals, funded by Medicare (through the National Health Pool), as well as state and federal contributions. International visitors from 11 countries have subsidised access to medically necessary treatment under .