Isolation and enumeration of faecal streptococci from nile water (1975–1976)

Saleh, Fayek A.

doi:10.1016/0043-1354(80)90101-3

Cited by 7 publications

(4 citation statements)

References 22 publications

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“…2). These results disagree with those of other studies (Saleh 1980; Volterra et al . 1985), which suggested that the MF technique was more efficient (gave higher numbers) for faecal streptococci counts than the MPN procedure.…”

Section: Resultscontrasting

confidence: 99%

“…1989). In contrast, as far as faecal streptococci are concerned, studies comparing the results of the MPN and MF methods are lacking and fragmentary (Saleh 1980; Volterra et al . 1985).…”

Section: Introductionmentioning

confidence: 99%

“…Many comparisons of the results of MPN and MF bacteriological analysis of water and waste water have been made regarding the coliform group (Dutka and Tobin 1976;Janardan et al 1977;McFeters et al 1982 6 ; Massa et al 1989). In contrast, as far as faecal streptococci are concerned, studies comparing the results of the MPN and MF methods are lacking and fragmentary (Saleh 1980;Volterra et al 1985 7 ). The pour plate technique (PP), although apparently more suitable for enumerating faecal streptococci densities in polluted waters, is not recommended amongst the international methods cited above (EC 1980;WHO 1984;APHA 1998).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of recovery methods to detect faecal streptococci in polluted waters

Massa

Brocchi

Peri

et al. 2001

Lett Appl Microbiol

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Section: Resultscontrasting

confidence: 99%

“…1989). In contrast, as far as faecal streptococci are concerned, studies comparing the results of the MPN and MF methods are lacking and fragmentary (Saleh 1980; Volterra et al . 1985).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluation of recovery methods to detect faecal streptococci in polluted waters

Massa

Brocchi

Peri

et al. 2001

Lett Appl Microbiol

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“…One of the difficulties associated with such field studies is the broad spectrum of streptococcal biotypes likely to be encountered. For example, biochemical classification of faecal streptococci from the Nile River showed that about 78% of the isolates were distributed amongst atypical or unclassifiable categories (Saleh 1980). Bayne et al (1983) examined Group D streptococci isolates in the vicinity of a sewer outfall.…”

Section: Species Compositionmentioning

confidence: 99%

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Sinton

Donnison²,

Hastie

1993

New Zealand Journal of Marine and Freshwater Research

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Some New Zealand regional councils are examining the use of faecal streptococci (or the subset, enterococci) to assist in identifying pollution sources, or as better indicators of disease risk in bathing waters than faecal coliforms. However, in spite of worldwide investigation, faecal streptococci have largely failed to fulfil their potential as pollution source (human versus animal) indicators in receiving waters. Many qualifications accompany the use of faecal coliform : faecal streptococci (FC : FS) ratios, and the species identification approach (using biochemical and DNA-based methods) has produced inconclusive results. Nevertheless, the FC : FS shift method (in which the ratio changes under sample storage) may M92025 Received 6 May 1992 ; accepted 18 January 1993 warrant further investigation. Although reported results vary widely, most studies indicate that faecal streptococci outlive faecal coliforms in receiving waters and are more resistant to sunlight-induced inactivation. USEPA epidemiological studies showed that enterococcus concentrations were better correlated than faecal conform concentrations with disease risk associated with bathing in sewage-polluted waters. These results, which implied that the enterococci better represented viral hazard, led the USEPA to recommend the use of enterococci (or Escherichia coli in freshwaters) as bathing water quality indicators. These recommendations have largely been followed in provisional New Zealand Department of Health guidelines. However, adoption of the USEPA criteria should be approached cautiously, because of doubts about their epidemiological applicability in New Zealand, and a lack of information about streptococcal concentrations and species profiles in local effluents and receiving waters.

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Fecal Streptococci/Enterococci in Aquatic Environments

Borrego

Castro

Figueras

2003

Encyclopedia of Environmental Microbiology

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Introduction: Definition and Taxonomic Position Identification Habitat and Clinical Significance Fecal Pollution of Natural Water Environments Epidemiological Studies Survival of Fecal Streptococci/Enterococci in Aquatic Environments Enumeration Techniques

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Isolation and enumeration of faecal streptococci from nile water (1975–1976)

Cited by 7 publications

References 22 publications

Evaluation of recovery methods to detect faecal streptococci in polluted waters

Evaluation of recovery methods to detect faecal streptococci in polluted waters

Faecal streptococci as faecal pollution indicators: A review. Part II: Sanitary significance, survival, and use

Fecal Streptococci/Enterococci in Aquatic Environments

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