1. Saudi Food and Drug Authority, Riyadh, Saudi Arabia
2. School of Public Health and Community Medicine, Faculty of Medicine, The University of New South Wales, Sydney, NSW, Australia
3. National Centre for Immunisation Research and Surveillance of Vaccine Preventable Diseases (NCIRS), The Children’s Hospital at Westmead, NSW, Australia
4. Marie Bashir Institute for Infectious Diseases and Biosecurity, School of Biological Sciences and Sydney Medical School, The University of Sydney, Westmead, NSW, Australia