James M. Trauer , Don Bandaranayake, Robert Booy, Mark I. Chen, Michelle Cretikos, Gary K. Dowse, Dominic E. Dwyer, Michael E. Greenberg, Q. Sue Huang, Gulam Khandaker, Jen Kok, Karen L. Laurie, Vernon J. Lee, Jodie McVernon, Scott Walter, Peter G. Markey, and for the Australia, New Zealand and Singapore Pandemic Serosurveillance Study Group

Author affiliations: Author affiliations: Melbourne Sleep Disorders Centre, East Melbourne, Victoria, Australia (J.M. Trauer); Environmental Science and Research, Wallaceville, New Zealand (D. Bandaranayake, Q.S. Huang); National Centre for Immunisation Research and Surveillance, Westmead, New South Wales, Australia (R. Booy, G. Khandaker); National University Health System, Singapore (M.I. Chen); University of Sydney, Sydney, New South Wales, Australia (M. Cretikos); Communicable Disease Control Directorate, Shenton Park, Western Australia, Australia (G.K. Dowse); Centre for Infectious Diseases and Microbiology, Westmead (D.E. Dwyer, J. Kok); CSL Limited, Parkville, Victoria, Australia (M.E. Greenberg); World Health Organization Collaborating Centre for Reference and Research in Influenza, North Melbourne, Victoria, Australia (K.L. Laurie); World Health Organization, Geneva, Switzerland (V.J. Lee); Melbourne School of Population Health, Parkville (J. McVernon); Centre for Epidemiology and Research, North Sydney, New South Wales, Australia (S. Walter; Centre for Disease Control, Tiwi, Northern Territory, Australia (P.G. Markey)