Effect of Wildlife Access on Microbial Safety of Irrigation Water Used in the Cultivation of Chinese Cabbage in Goesan

Yun, Bohyun; Jin, Lim Sang; Hung, Nguyen Bao; Park, Daesoo; Kim, Won-Il; Jung, Kyu-Seok; Ham, Hyeonheui; Kim, Hyun Ju; Yul, Ryu Kyung; Kim, Se-Ri; Park, Yung Chul

doi:10.13103/jfhs.2018.33.6.447

Cited by 1 publication

(1 citation statement)

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“…Based on our observations, wildlife samples are a source of fecal-borne pathogens in various regions of South Korea. Irrigation water and rain water may be the cause of fecal-borne pathogens dissemination in Korea [ 102 , 103 ]. Monitoring Salmonella in this region could aid in determining the temporal and spatial factors that influence Salmonella incidence, as well as in source tracking, higher resolution of different serovars, and comparisons with similar data from other agricultural regions in South Korea.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Salmonella spp. and Escherichia coli in the feces of free-roaming wildlife throughout South Korea

Mafizur,

Sangjin,

Chul

2024

PLoS ONE

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Wildlife can carry pathogenic organisms, including viruses, bacteria, parasites, and fungi, which can spread to humans and cause mild to serious illnesses and even death. Spreading through animal feces, these pathogens significantly contributes to the global burden of human diseases. Therefore, the present study investigated the prevalence of zoonotic bacterial pathogens, such as Salmonella spp., Escherichia coli, and Shiga toxin-producing E. coli (STEC), in animal feces. Between September 2015 and August 2017, 699 wildlife fecal samples were collected from various agricultural production regions and mountainous areas in South Korea. Fecal samples were collected from wild mammals (85.26%, 596/699) and birds (14.73%, 103/699). Salmonella spp. and E. coli were present in 3% (21/699) and 45.63% (319/699) of the samples, respectively. Moreover, virulence genes stx1 and both stx1 and stx2 were detected in 13.30% (93/699) and 0.72% (5/699) of the samples, respectively. The 21 Salmonella spp. were detected in badgers (n = 5), leopard cats (n = 7), wild boars (n = 2), and magpies (n = 7); STEC was detected in roe deer, water deer, mice, and wild boars. Through phylogenetic and gene-network analyses, the Salmonella spp. isolates (n = 21 laboratory isolates, at least one isolate from each Salmonella-positive animal fecal sample, and n = 6 widely prevalent reference Salmonella serovars) were grouped into two major lineages: S. enterica subsp. enterica and S. enterica subsp. diarizonae. Similarly, 93 E. coli isolates belonged to stx1, including three major lineages (groups 1–3), and stx1 and stx2 detected groups. To the best of our knowledge, this is the first report of a wild leopard cat serving as a reservoir for Salmonella spp. in South Korea. The research findings can help manage the potential risk of wildlife contamination and improve precautionary measures to protect public health.

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Section: Discussionmentioning

confidence: 99%