Antibiotic resistant bacteria in urban sewage: Role of full-scale wastewater treatment plants on environmental spreading

Turolla, Andrea; Cattáneo, M.; Marazzi, Francesca; Mezzanotte, Valeria; Antonelli, Manuela

doi:10.1016/j.chemosphere.2017.10.099

Cited by 87 publications

(32 citation statements)

References 51 publications

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“…However, the aquatic environment also helps in the spread of antibiotic resistance genes through transfer of genetic material among these pathogens [ 30 ]. Microbiological water quality standards are majorly based on faecal indicators; though they signify a minor part of the total bacterial in aquatic environment and E. coli is a frequently used indicator organism used to monitor the microbial quality of water [ 31 ]. From the 173 presumptive E. coli isolates screened, 111 isolates harboured uidA gene through molecular technique.…”

Section: Discussionmentioning

confidence: 99%

Molecular Characterization and Antimicrobial Resistance Pattern of Escherichia coli Recovered from Wastewater Treatment Plants in Eastern Cape South Africa

Igwaran

Iweriebor

Okoh

2018

IJERPH

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Wastewater treatment plants (WWTPs) are designed to eliminate organic matter and pathogens but most WWTPs discharges antimicrobial resistance pathogens into aquatic milieu. The study aimed to examine the antibiotics resistant patterns and the presence of some resistance genes among E. coli isolates from WWTPs effluents. Water were collected from WWTPs final effluents, filtered through nitrocellulose membrane and the filter papers were placed on chromogenic agar plates, incubated for 24 h at 37 °C. Presumptive E. coli isolates (173) were obtained from the culture method. From the presumptive E. coli isolates screened by polymerase chain reaction (PCR), 111 isolates were positive and the positive isolates were further screened for six diarrheagenic E. coli pathotypes (EPEC, ETEC, EHEC, DAEC, EIEC, and EAEC) and from the pathotypes screened, nine isolates harboured daaE gene. The phenotypic susceptibility patterns of the 111 isolates to 12 antibiotics were determined by Kirby-Bauer disk diffusion technique. All the isolates were resistant to erythromycin and clindamycin. From the resistance genes screened, 31 isolates harboured mcr-1 gene and nine isolates harboured ermA gene. The study reveals that water samples recovered from the final effluents of WWTPs may likely be one of the major sources of antibiotic-resistant in Escherichia coli.

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Section: Discussionmentioning

confidence: 99%

Molecular Characterization and Antimicrobial Resistance Pattern of Escherichia coli Recovered from Wastewater Treatment Plants in Eastern Cape South Africa

Igwaran

Iweriebor

Okoh

2018

IJERPH

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“…Besides, the production of ESBL is one of the major AR mechanisms in Enterobacteriaceae which has increasingly posed a serious threat to the public health due to a widespread dissemination of ESBL-carrying bacteria (Zhang et al 2015). Recent findings have recognized the role of WWTPs in promoting the widespread of antibiotic resistant bacteria (ARB) and their antimicrobial resistance genes (ARGs) in surface water which often cannot be completely eliminated by drinking water reservoirs (Turolla et al 2018). However, more research on this subject is needed as an estimate of 33,000 casualties each year in Europe was published as a direct consequence of an infection due to bacteria resistant to antibiotics (Cassini et al 2018).…”

Section: Sanitation and Human Healthmentioning

confidence: 99%

Research hotspots and current challenges of lakes and reservoirs: a bibliometric analysis

Goethals

2020

Scientometrics

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Despite covering a small portion of the earth's surface, lakes and reservoirs offer enormous benefits to human society, environmental well-being, and economic welfare. Previous studies have provided insights into specific subjects, yet integrated perspectives on the development of the two waterbodies are missing. To this end, we conducted a bibliometric analysis as a systematic data gathering to perform a large-scale overview and assess global trends of their scientific publications. Moreover, a second goal is to differentiate their research hotspots and current challenges given the different nature of their origin and functionality. 147,811 publications from 1955 to 2019 were retrieved from the database of the Science Citation Index Expanded, and then, divided into four research lines, (1) design and operation; (2) environment and ecology; (3) sanitation and human health; (4) socioeconomics. Bibliometric indicators showed that the number of publications sustained a rapid growth, from 100 during the 1950s to around 7800 publications per year during the past few years. The United States and EU 28 have long been world leaders in lake and reservoir research yet China has tremendously boosted its publications within the past 20 years, advancing this nation to the new world leader in both categories in 2019. Taking a closer look at research hotspots, design and operation have been the main topics for reservoir research while environment and ecology topics are the hotspots in lakes-related studies. This reflected the intensive human interventions in reservoirs, whose major purposes are to supply hydropower energy, irrigation, water storage, and aquaculture. Conversely, the impacts of eutrophication, heavy metals, and climate change have become more severe with the increase of species extinction and biodiversity loss, leading to urgent needs for lake restoration. Both freshwater bodies show comparable attention on their roles in socioeconomics while much higher concerns about sanitation and human health have been paid in reservoirs compared to its counterpart. Clear obtained distinctions in the hotspots and challenges of lake and reservoir research can contribute to better decision support systems of the two waterbodies.

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“…This increases the number of antibioticresistant bacteria. Moreover, the high density of bacteria in WWTP reactors increases the probability of transfer of genetic material between bacteria (Turolla et al, 2018). In Austria, for example, Galler et al (2018) isolated three multiresistant enterobacteria (extended-spectrum β-lactamase bacteria (ESBL)) from activated sludge: Gram-negative bacilli, methicillin-resistant Staphylococcus aureus (MRSA), and Vancomycin-resistant enterococci (VRE)).…”

Section: Pathogenic Organismsmentioning

confidence: 99%

Sanitary and environmental aspects of sewage sludge management

Rorat

Courtois

Vandenbulcke

et al. 2019

Industrial and Municipal Sludge

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Antibiotic resistant bacteria in urban sewage: Role of full-scale wastewater treatment plants on environmental spreading

Cited by 87 publications

References 51 publications

Molecular Characterization and Antimicrobial Resistance Pattern of Escherichia coli Recovered from Wastewater Treatment Plants in Eastern Cape South Africa

Molecular Characterization and Antimicrobial Resistance Pattern of Escherichia coli Recovered from Wastewater Treatment Plants in Eastern Cape South Africa

Research hotspots and current challenges of lakes and reservoirs: a bibliometric analysis

Sanitary and environmental aspects of sewage sludge management

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