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Browsing by Author "Ubomba-Jaswa, Eunice"

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Competitive Survival of Escherichia coli, Vibrio cholerae, Salmonella typhimurium and Shigella dysenteriae in Riverbed Sediments

Author: Abia, AL ; Ubomba-Jaswa, Eunice ; Momba, MN Date: Nov 2016 Studies on the survival of bacterial enteric pathogens in riverbed sediments have mostly focused on individual organisms. Reports on the competitive survival of these pathogens in riverbed sediments under the same experimental setup are ... Read more
Development of a rapid approach for the enumeration of Escherichia coli in riverbed sediment: case study, the Apies River, South Africa

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; Ssemakalu, CC ; Momba, MNB Date: Dec 2015 Purpose Research in the last few decades has increasingly demonstrated riverbed sediments as reservoirs of pathogenic bacteria, which could be released into water resources when sediments are resuspended. Current methods for enumerating these ... Read more
The effect of solar irradiated Vibrio cholera on the secretion of pro-inflammatory cytokines and chemokines by the JAWS II dendritic cell line in vitro

Author: Ssemakalu, CC ; Ubomba-Jaswa, Eunice ; Motaung, KS ; Pillay, M Date: Jun 2015 The use of solar irradiation to sterilize water prior to its consumption has resulted in the reduction of water related illnesses in waterborne disease endemic communities worldwide. Currently, research on solar water disinfection (SODIS) has ... Read more
Elimination of water pathogens with solar radiation using an automated sequential batch CPC reactor

Author: Polo-López, MI ; Fernández-Ibáñez, P ; Ubomba-Jaswa, Eunice ; Navntoft, C ; García-Fernández, I ; Dunlop, PSM ; Schmid, M ; Byrne, JA ; McGuigan, KG Date: Nov 2011 Solar disinfection (SODIS) of water is a well-known, effective treatment process which is practiced at household level in many developing countries. However, this process is limited by the small volume treated and there is no indication of ... Read more
High prevalence of multiple-antibiotic-resistant (MAR) Escherichia coli in river bed sediments of the Apies River, South Africa

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; Momba, MNB Date: Oct 2015 This study aimed at investigating the presence of antibiotic-resistant Escherichia coli in river bed sediments of the Apies River, Gauteng, South Africa, in order to better inform health management decisions designed to protect users of the ... Read more
Impact of seasonal variation on Escherichia coli concentrations in the riverbed sediments in the Apies River, South Africa

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; Momba, MNB Date: Dec 2015 Many South Africans living in resource-poor settings with little or no access to pipe-borne water still rely on rivers as alternative water sources for drinking and other purposes. The poor microbial quality of such water bodies calls for ... Read more
Inactivation of enteropathogenic E. coli by solar disinfection (SODIS) under simulated sunlight conditions

Author: Ubomba-Jaswa, Eunice ; Boyle, MAR ; McGuigan, KG Date: Dec 2008 Solar Disinfection (SODIS) is a low cost water treatment method currently used in communities that do not have year round access to safe water. However, there is still reluctance in widespread adoption of this treatment method due to a number ... Read more
Influence of solar water disinfection on immunity against cholera: a review

Author: Ssemakalu, CC ; Pillay, M ; Ubomba-Jaswa, Eunice ; Motaung, KS Date: Sep 2014 Cholera remains a problem in developing countries. This is attributed to the unavailability of proper water treatment, sanitary infrastructure and poor hygiene. As a consequence, countries facing cholera outbreaks rely on interventions such ... Read more
Occurrence of diarrhoeagenic Escherichia coli virulence genes in water and bed sediments of a river used by communities in Gauteng, South Africa

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; Momba, MNB Date: Aug 2016 In most developing countries, especially in Southern Africa, little is known about the presence of diarrhoeagenic Escherichia coli (DEC) pathotypes in riverbed sediments. The present study sought to investigate the presence of DEC virulence ... Read more
Quantitative microbial risk assessment (QMRA) shows increased public health risk associated with exposure to river water under conditions of riverbed sediment resuspension

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; Genthe, Bettina ; Momba, MNB Date: Oct 2016 Although higher microbial concentrations have been reported in sediments than in the overlying water column, most quantitative microbial risk assessment (QMRA) studies have not clearly indicated the contribution of sediment-borne pathogens ... Read more
Riverbed sediments in the Apies River, South Africa: recommending the use of both Clostridium perfringens and Escherichia coli as indicators of faecal pollution

Author: Abia, ALK ; Ubomba-Jaswa, Eunice ; du Preez, M ; Momba, MNB Date: Dec 2015 Purpose Sediments have been shown to contribute to the microbial quality of the water column during resuspension and serve as reservoirs for potentially pathogenic organisms. Currently, definitive guidelines regarding microbial indicators ... Read more
Solar water disinfection (SODIS): A review from bench-top to roof-top

Author: McGuigan, KG ; Conroy, RM ; Mosler, H-J ; Du Preez, M ; Ubomba-Jaswa, Eunice ; Fernandez-Ibanez, P Date: Oct 2012 Solar water disinfection (SODIS) has been known for more than 30 years. The technique consists of placing water into transparent plastic or glass containers (normally 2 L PET beverage bottles) which are then exposed to the sun. Exposure times ... Read more

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Browsing by Author "Ubomba-Jaswa, Eunice"

Browsing by Author "Ubomba-Jaswa, Eunice"

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