1. Department of Public Health, Auckland University of Technology, Auckland, New Zealand
2. Migrant and Refugee Research Health Centre, Auckland University of Technology, Auckland, New Zealand
3. New Zealand Work Research Institute, Auckland University of Technology, Auckland, New Zealand
4. Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand
5. The Immunisation Advisory Centre, Department of General Practice and Primary Health Care, University of Auckland, Auckland, New Zealand