Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa

O.O. Osuolale

doi:10.4314/njbas.v30i2.13

2023, Vol: 31, Issue: 1

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Research Article

Nig. J. Basic Appl. Sci.. 2022; 30(2): 100-104

doi: 10.4314/njbas.v30i2.13

Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa

O.O. Osuolale.

Abstract
The final effluents of two wastewater plants located in the Eastern Cape of South Africa were tested for the presence of enterohaemorrhagic Escherichia coli O157:H7 isolates, and characteristics of the isolates obtained were determined. A total of 23 wastewater samples were collected from the treatment plants at the final effluent point after the disinfectant stages of wastewater processing. Altogether, 540 presumptive E. coli isolates were obtained by colony counting on the E. coli O157:H7 chromogenic agar base supplemented with cefixime tellurite and were subcultured onto sorbitol-MacConkey agar and tested for agglutination using the Prolex E. coli O157 latex test reagent kit. The results showed that the 149 suspected colonies from SMAC agar were all negative for the antisera. None of the isolates agglutinated with antisera against E. coli O157 and thus no presence of the bacteria can be confirmed from the treated effluents. The likelihood of the receiving water body and the environment being contaminated with E. coli O157:H7 is therefore minimal. Future monitoring is however recommended.

Key words: coli O157:H7, Eastern Cape, Effluent, Wastewater, Latex Agglutination

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Pubmed Style

O.O. Osuolale. Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nig. J. Basic Appl. Sci.. 2022; 30(2): 100-104. doi:10.4314/njbas.v30i2.13

Web Style

O.O. Osuolale. Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. https://www.njbas-udus.com/?mno=101683 [Access: September 15, 2023]. doi:10.4314/njbas.v30i2.13

AMA (American Medical Association) Style

O.O. Osuolale. Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nig. J. Basic Appl. Sci.. 2022; 30(2): 100-104. doi:10.4314/njbas.v30i2.13

Vancouver/ICMJE Style

O.O. Osuolale. Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nig. J. Basic Appl. Sci.. (2022), [cited September 15, 2023]; 30(2): 100-104. doi:10.4314/njbas.v30i2.13

Harvard Style

O.O. Osuolale (2022) Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nig. J. Basic Appl. Sci., 30 (2), 100-104. doi:10.4314/njbas.v30i2.13

Turabian Style

O.O. Osuolale. 2022. Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nigerian Journal of Basic and Applied Sciences, 30 (2), 100-104. doi:10.4314/njbas.v30i2.13

Chicago Style

O.O. Osuolale. "Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa." Nigerian Journal of Basic and Applied Sciences 30 (2022), 100-104. doi:10.4314/njbas.v30i2.13

MLA (The Modern Language Association) Style

APA (American Psychological Association) Style

O.O. Osuolale (2022) Investigating the Occurrence of Escherichia coli O157:H7 in the Final Effluents of Two Wastewater Treatment Plant in the Eastern Cape of South Africa. Nigerian Journal of Basic and Applied Sciences, 30 (2), 100-104. doi:10.4314/njbas.v30i2.13

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