Asst. Prof. Mohan Amarasiri received Poster Award at the 20th IWA Symposium on Health Related Water Microbiology (Vienna, Austria, Sep. 15-20, 2019). 20th IWA Symposium on Health Related Water Microbiology Poster Award Extracellular antibiotic resistance gene decay by free chlorine treatment Mohan Amarasiri, Chihiro Konuma and Daisuke Sano