HALO principle

Health, Age, Lifestyle, Occupation. This helps assess which vaccines adults need based on their risk factors.

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Last updated

6 February 2019

Last reviewed

6 February 2019

Printed content may be out of date. For up to date information, always refer to the digital version:

https://immunisationhandbook.health.gov.au/technical-terms/halo-principle

All technical terms

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