Viral diversity and abundance in polluted waters in Kampala, Uganda (original) (raw)

Water research, 2017

Abstract

Waterborne viruses are a significant cause of human disease, especially in developing countries such as Uganda. A total of 15 virus-selective samples were collected at five sites (Bugolobi Wastewater Treatment Plant (WWTP) influent and effluent, Nakivubo Channel upstream and downstream of the WWTP, and Nakivubo Swamp) in July and August 2016. Quantitative PCR and quantitative RT-PCR was performed to determine the concentrations of four human viruses (adenovirus, enterovirus, rotavirus, and hepatitis A virus) in the samples. Adenovirus (1.53*105-1.98*107 copies/L) and enterovirus (3.17*105-8.13*107 copies/L) were found to have the highest concentrations in the samples compared to rotavirus (5.79*101-3.77*103 copies/L) and hepatitis A virus (9.93*102-1.11*104 copies/L). In addition, next-generation sequencing and metagenomic analyses were performed to assess viral diversity, and several human and vertebrate viruses were detected, including Herpesvirales, Iridoviridae, Poxviridae, Circ...

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