Occurrence and control of naegleria fowleri in well water chlorine resistance

Charles P. Gerba, Barbara Blair, Payal Sarkar, Kelly Bright

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The goal of this project was to determine the occurrence of the N. fowleri in well water. The presence of Naegleria fowleri was confirmed in 8.3% of the wells sampled. Re-testing of a subset of wells suggests that some wells are colonized by the organism. Laboratory experiments with N. fowleri cysts and trophozoites indicate that the Ct (concentration of disinfectant X time) for free chlorine is 6 for the trophozoite form and 31 for the cysts at 23 0C. These Ct values for N. fowleri cysts were comparable to published values for Giardia cysts but much greater than those for Cryptosporidium oocysts.

Original languageEnglish (US)
Title of host publicationAmerican Water Works Association - Water Quality Technology Conference and Exposition 2007
Subtitle of host publicationFast Tracks to Water Quality
Pages1582-1596
Number of pages15
StatePublished - Dec 1 2007
EventWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality - Charlotte, NC, United States
Duration: Nov 4 2007Nov 8 2007

Publication series

NameAmerican Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality

Other

OtherWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
CountryUnited States
CityCharlotte, NC
Period11/4/0711/8/07

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology
  • Geography, Planning and Development

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    Gerba, C. P., Blair, B., Sarkar, P., & Bright, K. (2007). Occurrence and control of naegleria fowleri in well water chlorine resistance. In American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality (pp. 1582-1596). (American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality).