1. Department of Disease Control, London School of Hygiene and Tropical Medicine , London WC1E 7HT , UK
2. Institute for Global Health, University College London , London WC1E 6BT , UK
3. UQ Centre for Clinical Research , Faculty of Medicine, , Brisbane 4029 , Australia
4. The University of Queensland , Faculty of Medicine, , Brisbane 4029 , Australia
5. Division of Infectious Diseases, University of Texas Medical Branch , Galveston, TX 77555 , USA
6. Cusco Branch – Alexander von Humboldt Tropical Medicine Institute, Universidad Peruana Cayetano Heredia , Cusco , Peru
7. Dr Deb The Travel Doctor, Travel Medicine Alliance , Brisbane 4000 , Australia
8. College of Public Health, Medical and Veterinary Sciences, James Cook University , Townsville 4811 , Australia
9. Zhuhai International Travel Healthcare Center of China Customs , Zhuhai 519020 , China