1. Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
2. Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
3. Centre for Clinical Vaccinology and Tropical Medicine, Nuffield Department of Clinical Medicine, University of Oxford, Churchill Hospital, Oxford OX3 7LJ, United Kingdom
4. Sappasithiprasong Hospital, Ubon Ratchathani 34000, Thailand
5. School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510080, People's Republic of China
6. Clinical Microbiology Laboratory, Guangzhou First Municipal People's Hospital, Guangzhou 510080, People's Republic of China