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Assessing the risk posed by oocysts in drinking water
Author(s) -
Haas Charles N.,
Crockett Christopher S.,
Rose Joan B.,
Gerba Charles P.,
Fazil Aamir M.
Publication year - 1996
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1996.tb06619.x
Subject(s) - cryptosporidium , cryptosporidium parvum , environmental health , poisson distribution , poisson regression , biology , toxicology , microbiology and biotechnology , statistics , medicine , mathematics , feces , population
Dose–response data on human exposure to oocysts of Cryptosporidium were analyzed to determine the dose corresponding to a stated risk level. A recent study of infection and illness in human volunteers subjected to controlled exposure to oocysts of Cryptosporidium parvum provided a suitable data base for dose–response analysis. The authors analyzed the study data, and using exponential and beta‐poisson dose–response models, arrived at an estimate of the waterborne concentrations associated with various risk levels.