A prospective study of swimming-related illness. II. Morbidity and the microbiological quality of water. | Zendy

Patricia L. Seyfried | Zendy; R.S. Tobin | Zendy; Natalie E. Brown | Zendy; P F Ness | Zendy

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A prospective study of swimming-related illness. II. Morbidity and the microbiological quality of water.

Author(s) -

Patricia L. Seyfried,

R.S. Tobin,

Natalie E. Brown,

P F Ness

Publication year - 1985

Publication title -

american journal of public health

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.284

H-Index - 264

eISSN - 1541-0048

pISSN - 0090-0036

DOI - 10.2105/ajph.75.9.1071

Subject(s) - fecal coliform , feces , coliform bacteria , prospective cohort study , indicator bacteria , epidemiology , veterinary medicine , water quality , pseudomonas aeruginosa , medicine , environmental science , microbiology and biotechnology , bacteria , biology , ecology , genetics

A prospective cohort epidemiological-microbiological study was carried out at 10 beaches in Ontario, Canada. Lake water and sediment samples collected at the beaches were analyzed for fecal coliforms, fecal streptococci, heterotrophic bacteria, Pseudomonas aeruginosa, and total staphylococci. Mean fecal coliform levels in the surface water of the lakes were within accepted guidelines. Bacterial densities were found to be approximately 10 times higher in the sediment than in the corresponding surface water samples. Morbidity among swimmers was shown to be related to staphylococcal counts, to fecal coliform levels, and, somewhat less strongly, to fecal streptococcal counts. Total staphylococci appeared to be more consistent indicators for predicting total morbidity rates among swimmers.

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