A Waterborne Outbreak and Detection of Cryptosporidium Oocysts in Drinking Water of an Older High-Rise Apartment Complex in Seoul

Eun-Joo Cho; Jin-Young Yang; Eun-Sook Lee; Se-Chul Kim; So-Yang Cha; Sung-Tek Kim; Man-Ho Lee; Sun-Hee Han; Young-Sang Park

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자료유형: 학술저널

저자정보: Eun-Joo Cho (Seoul Waterworks Research Institute) Jin-Young Yang (Seoul Waterworks Research Institute) Eun-Sook Lee (Seoul Waterworks Research Institute) Se-Chul Kim (Seoul Waterworks Research Institute) So-Yang Cha (Seoul Waterworks Research Institute) Sung-Tek Kim (Seoul Waterworks Research Institute) Man-Ho Lee (Seoul Waterworks Research Institute) Sun-Hee Han (Seoul Waterworks Research Institute) Young-Sang Park (Seoul Waterworks Research Institute)

저널정보: 대한기생충학열대의학회 Parasites, Hosts and Diseases The Korean Journal of Parasitology Vol.51 No.4

발행연도: 2013.8

수록면: 461 - 466 (6page)

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From May to June 2012, a waterborne outbreak of 124 cases of cryptosporidiosis occurred in the plumbing systems of an older high-rise apartment complex in Seoul, Republic of Korea. The residents of this apartment complex had symptoms of watery diarrhea and vomiting. Tap water samples in the apartment complex and its adjacent buildings were collected and tested for 57 parameters under the Korean Drinking Water Standards and for additional 11 microbiological parameters. The microbiological parameters included total colony counts, Clostridium perfringens, Enterococcus, fecal streptococcus, Salmonella, Shigella, Pseudomonas aeruginosa, Cryptosporidium oocysts, Giardia cysts, total culturable viruses, and Norovirus. While the tap water samples of the adjacent buildings complied with the Korean Drinking Water Standards for all parameters, fecal bacteria and Cryptosporidium oocysts were detected in the tap water samples of the outbreak apartment complex. It turned out that the agent of the disease was Cryptosporidium parvum. The drinking water was polluted with sewage from a septic tank in the apartment complex. To remove C. parvum oocysts, we conducted physical processes of cleaning the water storage tanks, flushing the indoor pipes, and replacing old pipes with new ones. Finally we restored the clean drinking water to the apartment complex after identification of no oocysts.

#Cryptosporidium parvum #oocyst #cryptosporidiosis #drinking water supply #plumbing system

참고문헌 (29)

참고문헌 신청

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