“…2,27,37 Although water-related diseases are rarely deadly in developed countries, there are several authors who report that DW consumption has numerous health risks attributed to pathogenic bacteria, protozoa and virus. [38][39][40][41][42][43] Several outbreaks with public health risks occurred due to malfunctioning DW treatment plants and distribution networks, which failed to maintain an adequate level of disinfectant to prevent the growth of pathogens and/or harboured the pathogens. In this millennium, some reported waterborne outbreaks have been due to Escherichia coli O157:H7, Campylobacter spp., Helicobacter pylori, P. aeruginosa, Salmonella paratyphi, Cryptosporidium parvum, Giardia and viruses (e.g., norovirus, calcivirus, enterovirus) in Canada, France, Italy, England, Finland, Switzerland, Northern Ireland, Norway, Belarus, New Zealand, Poland and the United States.…”