Abstract:
In this chapter, we give a brief overview on occurrence of antibiotic resistance gene in WWTP based on previous studies conducted in several countries. Then, we describe our initial effort in antibiotic resistance gene screening from samples collected in four WWTP in Ishikawa Prefecture, Japan, employing the activated sludge process, and wastewater samples collected from WWTPs in Colombo, Sri Lanka, Bangkok, Thailand, and Can Tho, Vietnam.