1. Infectious Disease Center Guangzhou Eighth People's Hospital Guangzhou Medical University Guangzhou China
2. Division of Infectious Diseases and International Health Duke University School of Medicine Durham NC USA
3. Oxford University Clinical Research Unit Ho Chi Minh City Vietnam
4. Department of Medical Statistics School of Public Health Sun Yat‐sen University Guangzhou China
5. Hospital‐Acquired Infection Control Department Bijie Third People's Hospital Bijie China