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Monitoring of Free Living Amoeba in Some Drinking Water Treatment Plant in Great Cairo Governorate, Egypt

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Last updated: 03 Jan 2025

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Abstract

Background: Free-living amoebae (FLAs) in drinking water exerts an indirect public health hazards as they may harbor pathogenic microorganisms that can escape drinking water treatment processes and reach to end user. The aim of this study was to observe the existence of free-living amoebae through drinking water treatment plants in Great Cairo governorate, Egypt. Water samples were collected from 3 drinking water treatment plants (DWTPs) and filtered through nitrocellulose membranes, then placed on non-nutrient agar with Escherichia coli for cultivation of free-living amoebae. Results:The obtained amoebae were morphologically identified and confirmed to genus level. The results revealed that the occurrence of free-living amoebae in intakes and finished water of the examined DWTPs reached 95% and 31%, respectively. The removal percentage of free-living amoebae through different treatment processes reached its highest rate in Rod Elfarag DWTP (100%), followed by Embaba DWTP (63.64%), and reached to (41.67%)in Shubra El-Kheima DWTPs. Almost all the morphologically identified (FLA) strains proved to be related to genus Acanthamoeba, Naegleria. Conclusion: the presence of free-living amoebae in drinking water exerts an indirect public health hazards as they may harbor pathogenic microorganisms that can escape drinking water treatment processes and reach to end user.

Keywords

Free Living Amoeba, Drinking water treatment plants, Greater Cairo

Authors

First Name

Lamiaa A. Shawky 1 Faten El-Feky 2, Hanan Taher 2,

Last Name

Wael I. Ashour1.

MiddleName

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Affiliation

1 Reference Laboratory for Drinking Water, Holding Company of Water And Waste Water, 2 Faculty of Science, Girls Branch Al-Azhar University, Cairo, Egypt

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Volume

71

Article Issue

7

Related Issue

1636

Issue Date

2018-04-01

Receive Date

2018-02-02

Publish Date

2018-04-01

Page Start

3,518

Page End

3,528

Print ISSN

1687-2002

Online ISSN

2090-7125

Article File

EJHM_Volume 71_Issue 7_Pages 3518-3528.pdf

PDF . 631.6kB

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https://ejhm.journals.ekb.eg/article_8326.html

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https://ejhm.journals.ekb.eg/service?article_code=8326

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9

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Original Article

Type Code

606

Publication Type

Journal

Publication Title

The Egyptian Journal of Hospital Medicine

Publication Link

https://ejhm.journals.ekb.eg/

MainTitle

Monitoring of Free Living Amoeba in Some Drinking Water Treatment Plant in Great Cairo Governorate, Egypt

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Article

Created At

22 Jan 2023