Pathogenic members of Escherichia coli &amp; Shigella spp. Shigellosis

García-Aljaro, Cristina; Momba, Maggy Ndombo Benteke; Muniesa, Maite

doi:10.14321/waterpathogens.24

Cited by 7 publications

(7 citation statements)

References 259 publications

(335 reference statements)

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“…coli LRVs was observed only between WTF G (1.05) and WTFs D (3.71, p = 0.0019) or E (3.71, p = 0.0019). The LRVs were consistent with those of several previously reported WTFs [ 1 , 74 , 75 ]. The markedly high geometric mean E .…”

Section: Resultssupporting

confidence: 90%

Quantitative detection and reduction of potentially pathogenic bacterial groups of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex, and Mycobacterium in wastewater treatment facilities

Aoki,

Takemura,

Kawakami

et al. 2023

PLoS ONE

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Water quality parameters influence the abundance of pathogenic bacteria. The genera Aeromonas, Arcobacter, Klebsiella, and Mycobacterium are among the representative pathogenic bacteria identified in wastewater. However, information on the correlations between water quality and the abundance of these bacteria, as well as their reduction rate in existing wastewater treatment facilities (WTFs), is lacking. Hence, this study aimed to determine the abundance and reduction rates of these bacterial groups in WTFs. Sixty-eight samples (34 influent and 34 non-disinfected, treated, effluent samples) were collected from nine WTFs in Japan and Thailand. 16S rRNA gene amplicon sequencing analysis revealed the presence of Aeromonas, Arcobacter, and Mycobacterium in all influent wastewater and treated effluent samples. Quantitative real-time polymerase chain reaction (qPCR) was used to quantify the abundance of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex (KpSC), and Mycobacterium. The geometric mean abundances of Aeromonas, Arcobacter, KpSC, and Mycobacterium in the influent wastewater were 1.2 × 104–2.4 × 105, 1.0 × 105–4.5 × 106, 3.6 × 102–4.3 × 104, and 6.9 × 103–5.5 × 104 cells mL−1, respectively, and their average log reduction values were 0.77–2.57, 1.00–3.06, 1.35–3.11, and −0.67–1.57, respectively. Spearman’s rank correlation coefficients indicated significant positive or negative correlations between the abundances of the potentially pathogenic bacterial groups and Escherichia coli as well as water quality parameters, namely, chemical/biochemical oxygen demand, total nitrogen, nitrate-nitrogen, nitrite-nitrogen, ammonium-nitrogen, suspended solids, volatile suspended solids, and oxidation-reduction potential. This study provides valuable information on the development and appropriate management of WTFs to produce safe, hygienic water.

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Section: Resultssupporting

confidence: 90%

Quantitative detection and reduction of potentially pathogenic bacterial groups of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex, and Mycobacterium in wastewater treatment facilities

Aoki,

Takemura,

Kawakami

et al. 2023

PLoS ONE

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“…and Shigella spp. are common in cattle excrement, and OBT are known to forage in ruminant dung piles for invertebrate food sources (Garcia‐Aljaro, Momba, & Muniesa, 2017; Legler, 1960; Metcalf & Metcalf, 1970). Repeated exposure to potentially pathogenic bacteria via the fecal‐oral route may explain the more robust plasma antibacterial ability of ornate box turtles against these organisms.…”

Section: Discussionmentioning

confidence: 99%

Plasma antibacterial activities in ornate (Terrapene ornata) and eastern box turtles (Terrapene carolina)

et al. 2020

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Chelonians are one of the most imperiled vertebrate taxa and many species are increasingly threatened by disease, however, the immune response in this group is understudied. We quantified the innate immune response of eastern (Terrapene carolina; EBT) and ornate (Terrapene ornate; OBT) box turtles using plasma antibacterial activity assays. Plasma from both species abolished or significantly reduced the growth of all eight bacterial species evaluated, including Salmonella typhimurium, Escherichia coli, Enterobacter cloacae, Citrobacter freundi, Bacillus subtilis, Staphylococcus epidermidis, and Staphylococcus aureus. Bactericidal capacity was greater in OBT compared to EBT, and OBT plasma retained high antibacterial activities at a broader temperature range (20-40°C) compared to EBT (30-40°C). Plasma antibacterial activity was abolished following treatment with heat, protease, and ethylenediaminetetraacetic acid, indicating that complement is likely responsible for the observed effects. Further characterization of the box turtle immune response may provide insight into the importance of infectious diseases for species conservation, enabling the development of more efficient and effective population management strategies. K E Y W O R D S box turtle, chelonian, innate immunity, reptile, Terrapene

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“…E. coli are not only important member of the normal intestinal microbiota of humans and other mammals but also they are highly specialized pathogenic strains causing worldwide outbreaks of severe diseases and opportunistic pathogens [ 34 , 35 ]. Mainly there are six intestinal pathotypes [ 34 , 36 ]. These are enteropathogenic E. coli , Shiga toxin-producing E. coli , enterotoxigenic E. coli , enteroinvasive E. coli , enteroaggregative E. coli , and diffusely adherent E. coli .…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Escherichia coli in Under-Five Children with Diarrhea in Ethiopia: A Systematic Review and Meta-Analysis

Zenebe

Mitiku

Alem

2020

International Journal of Microbiology

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Diarrhea remains as a high health burden, especially to children in low-income countries including Ethiopia. Diarrheagenic Escherichia coli have been commonly associated as bacterial pathogens causing diarrheal disease among children. This systemic review and meta-analysis was intended to determine the pooled prevalence of Escherichia coli in under-five children with diarrhea in Ethiopia. A comprehensive search in PubMed, Google Scholar, ScienceDirect, ResearchGate, and Google search engine and manual searching were done for this systematic review and meta-analysis. The eligibility criteria for selecting studies were studies involving under-five children with diarrhea in Ethiopia, published articles, cross-sectional studies, and articles reported in English. The study was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) checklist. The data analysis was done using STATA 16.0 software. Cochran’s Q-test and I2 statistics were used for the assessment of heterogeneity. The random-effect model was used to estimate the pooled prevalence of Escherichia coli. A total of 797 articles were initially retrieved, and finally, 11 studies met the eligibility criteria and were included in the final meta-analysis. The pooled prevalence of Escherichia coli was 25% (95% CI: 9, 41). The pooled prevalence was varied by region, detection method, and sample size. The high prevalence emphasizes that Escherichia coli is a potential pathogen in under-five children with diarrhea in Ethiopia.

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Pathogenic members of Escherichia coli & Shigella spp. Shigellosis

Cited by 7 publications

References 259 publications

Quantitative detection and reduction of potentially pathogenic bacterial groups of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex, and Mycobacterium in wastewater treatment facilities

Quantitative detection and reduction of potentially pathogenic bacterial groups of Aeromonas, Arcobacter, Klebsiella pneumoniae species complex, and Mycobacterium in wastewater treatment facilities

Plasma antibacterial activities in ornate (Terrapene ornata) and eastern box turtles (Terrapene carolina)

Prevalence of Escherichia coli in Under-Five Children with Diarrhea in Ethiopia: A Systematic Review and Meta-Analysis

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