aRoyal Darwin Hospital, Menzies School of Health Research, Darwin, Australia
bVictorian Infectious Diseases Service, Royal Melbourne Hospital, Centre for Clinical Research Excellence in Infectious Diseases, Melbourne, Australia
Funding and support: By Annals policy, all authors are required to disclose any and all commercial, financial, and other relationships in any way related to the subject of this article that might create any potential conflict of interest. See the Manuscript Submission Agreement in this issue for examples of specific conflicts covered by this statement. Dr. Cheng is supported by a NHMRC research training fellowship. The authors declare no conflicting interests.
