1. Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Taoyuan.
2. Department of Applied Microbiology, National Chiayi University, Chiayi.
3. Department of Clinical Pathology, Chang Gung Memorial Hospital, Taoyuan.
4. Division of General Surgery, Department of Surgery, Hualien Armed-Forced General Hospital, Huan-Lien, Taiwan.
5. Unité BioAgresseurs, Santé et Environnement, Institut National de la Recherche Agronomique, 37380 Nouzilly, France.