1. Thailand‐Japan Research Collaboration Center on Emerging and Re‐emerging Infections Osaka University Nonthaburi Thailand
2. Department of Bacterial Infections, Research Institute for Microbial Diseases Osaka University Osaka Japan
3. Division of Epidemiology, Department of Disease Control Ministry of Public Health Nonthaburi Thailand
4. National Institute of Health, Department of Medical Sciences Ministry of Public Health Nonthaburi Thailand
5. Department of Bacteriology I National Institute of Infectious Diseases Tokyo Japan
6. Department of Bacteriology, Institute of Tropical Medicine Nagasaki University Nagasaki Japan