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ORIGINAL RESEARCH article

Front. Environ. Sci.
Sec. Water and Wastewater Management
Volume 12 - 2024 | doi: 10.3389/fenvs.2024.1498893
This article is part of the Research Topic Biological contaminants of concern in water and wastewater: An environmental health perspective View all 14 articles

Surveillance of Vibrio cholerae serogroups (O1 and O139) from surface and ground water sources in the Vhembe district, Limpopo Province, South Africa

Provisionally accepted

The final, formatted version of the article will be published soon.

    Vibrio cholera is increasingly emerging as a significant public health concern in developing countries. Choleragenic V. cholerae O1 and O139 has reported to cause devastating disease and economic burdens in developing countries. In rural areas of the Vhembe district, most rivers and several communal boreholes are polluted as a result of sanitation issues around these water sources. The aim of this study was to determine the presence of choleragenic V. cholerae O1 and O139 in rivers and communal boreholes. The analysis of physicochemical parameters and molecular techniques was used to establish the adaptation and detect the serogroups of V. cholerae in the water samples. The results reported that electrical conductivities (EC) ranged between 18.78 and 154 μS/cm, with rivers such as Madandze and Mvudi recording >80 μS/cm, and those of the communal boreholes were ranged between 23.4 and 295 μS/cm, which were above the acceptable South African water quality guidelines of 0-70 μS/cm for rivers and communal boreholes. The results further revealed that most of the rivers detected positive for Vibrio cholerae, except for the Mukhase river; the downstream points of Livuvhu and Nwedi rivers and the upstream point of the Nzhelele river; and several of the communal boreholes (Mak B1, B2, Kwe B3, 4, and 6) also tested positive for the presence of Vibrio cholerae. The toxigenic Vibrios was also reported in Mutshundudi, Tshinane rivers, the upstream of Dzindi, Madanzhe, Nwedi, and the downstream of Sambandou rivers, as well as Mak B1, B2, and Kwe3 of communal boreholes. The serogroup O1 was detected on the Mutshundudi and Tshinane rivers, while serogroup O139 was detected upstream of the Dzindi, Madanzhe, Mutshundudi, and Tshinane rivers. There was also detection of the O1 serogroup in the communal boreholes (Mak B1 and Kwe B3), while O139 was only detected in one communal borehole (Mak B2). The development of robust policies, including an integrated water and sanitation safety surveillance web tool for monitoring water resources and public health protection, is required to make sure that drinking water in rural communities is safe for consumption.

    Keywords: Serotype group, Vibrio cholerae O1, Surface water, communal borehole, Water Quality, Waterborne transmission

    Received: 19 Sep 2024; Accepted: 26 Nov 2024.

    Copyright: © 2024 Kachienga, Rikhotso, Traore and Potgieter. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Leonard Kachienga, University of Venda, Thohoyandou, South Africa

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