1. Department of Microbiology; Kaohsiung Medical College; Kaohsiung 80708
2. Department of Clinical Pathology; Kaohsiung Medical College; Kaohsiung 80708
3. Department of Health; National Institute of Preventive Medicine; Taipei 11513 Taiwan, Republic of China
4. Department of Dermatology; Kaohsiung Medical College; Kaohsiung 80708