wledgement
My deepest thankfulness goes to Associated
Prof. Dr. Arunporn Itharat for her initial guidance.
Special thanks to Ms. Narissara Mungkornkaew for
collecting isolates from Thammasat University Hospital
and Dr. Carl J. Mason, Mr. Apichai Srijan and colleagues,
Enteric Diseases Department, USAMC-AFRIMS,
Thailand for providing bacterial strains. I deeply
appreciated Faculty of Medicine, Thammasat
University, Thailand for supporting laboratory facilities
to complete this successful work.