Water-Based Epidemiological Investigation of Hepatitis E Virus in South Africa
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Published:2024-04-13
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Volume:
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ISSN:1867-0334
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Container-title:Food and Environmental Virology
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language:en
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Short-container-title:Food Environ Virol
Author:
Salemane KaraboORCID, Coetzee Leanne Z.ORCID, Pocock GinaORCID, Genthe BettinaORCID, Taylor Maureen B.ORCID, Mans JanetORCID
Abstract
AbstractHepatitis E virus (HEV) is an emerging zoonotic pathogen that exhibits great host diversity. The primary means of transmission of the virus in low- and middle-income countries is contaminated water, often due to a lack of access to proper sanitation, which leads to faecal contamination of water sources. Environmental surveillance is an important tool that can be used to monitor virus circulation and as an early warning system for outbreaks. This study was conducted to determine the prevalence and genetic diversity of HEV in wastewater, surface water (rivers and standpipe/ablution water), and effluent from a piggery in South Africa. A total of 536 water samples were screened for HEV using real-time reverse transcription-polymerase chain reaction. Overall, 21.8% (117/536) of the wastewater, river, and ablution water samples tested positive for HEV, whereas 74.4% (29/39) of the samples from the piggery tested positive. Genotyping revealed sequences belonging to HEV genotypes 3 (98%, 53/54) and 4 (2%, 1/54), with subtypes 3c, 3f, and 4b being identified.
Funder
Department of Science and Innovation, South Africa Water Research Commission Poliomyelitis Research Foundation University of Pretoria
Publisher
Springer Science and Business Media LLC
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