Antibiotic resistance and virulence genes of extraintestinal pathogenic Escherichia coli from tropical estuary, south India

Sukumaran, Divya; Hatha, A. A. Mohamed

doi:10.3855/jidc.5627

Cited by 8 publications

(4 citation statements)

References 44 publications

(43 reference statements)

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“…Extraintestinal pathogenic E. coli in tropical estuaries raises concerns on such bacteria getting disseminated via seafood (Sukumaran & Hatha, 2015). In our study, three isolates were found positive for virulence genes associated with ExPEC.…”

Section: Discussionmentioning

confidence: 99%

Genetic relatedness, phylogenetic groups, antibiotic resistance, and virulence genes associated with ExPEC in Escherichia coli isolates from finfish and shellfish

Divya

Jabir

Yousuf

et al. 2020

J. Food Process. Preserv.

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Seafood is one of the most widely consumed food items worldwide for its high nutritional value. Over the last few decades, seafood safety has become an increasingly critical public health concern among consumers. An important portion of food-borne illness and outbreaks has resulted from the consumption of seafood (Iwamoto, Ayers, Mahon, & Swerdlow, 2010). The presence of Escherichia coli in seafood is associated with fecal pollution in growing areas or cross-contamination during processing and storage. Seafood including clams and finfish can acquire these pathogens from the polluted estuarine environment. Shellfish can concentrate bacteria present in estuarine waters and subsequently cause disease in consumers. Consumption of seafood from areas with poor water quality can cause a range of diseases, especially diarrhea (Baliere, Rince, Blanco, et al., 2015). Antibiotic-resistant E. coli from the estuarine water may reach humans during the handling and consumption of contaminated seafood (Grevskott, Svanevik, Sunde, Wester, & Lunestad, 2017).

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Section: Discussionmentioning

confidence: 99%

Genetic relatedness, phylogenetic groups, antibiotic resistance, and virulence genes associated with ExPEC in Escherichia coli isolates from finfish and shellfish

Divya

Jabir

Yousuf

et al. 2020

J. Food Process. Preserv.

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“…E. coli strains belonging to groups A and B1 do not frequently cause extraintestinal infection. These strains which are not highly virulent, generally cause disease only in hosts that are immunocompromised, and could be pathogenic in healthy hosts only if they were to acquire su cient extraintestinal factors [28]. All 3 isolated in group B1 were kpsMTII, mH, papC and tratT positive.…”

Section: Discussionmentioning

confidence: 99%

Pathogenic features of urinary Escherichia coli strains causing Asymptomatic Bacteriuria during Pregnancy

Mohebi

Hashemizade

Hadadi

et al. 2020

Preprint

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Background Asymptomatic bacteriuria is one of the common problems in pregnancy. Pyelonephritis, preterm labor and low birth weight infants have been associated with bacterial infection. Urinary tract infection (UTI) during pregnancy is frequently associated with complications. An observational cross-sectional study including investigated the prevalence of virulence genes, antimicrobial resistance, and its relationship with phylogenetic groups among E. coli strains isolated from pregnant women with asymptomatic bacteriuria who referred to Hafez hospital, Shiraz, Iran. Material and Methods A total of 300 urine samples were screened for Escherichia coli strains. Susceptibility testing was determined by the disk-diffusion method. The phylogenetic groups and 13 virulence genes were identified by PCR. ESBL and AmpC producing isolates were detected using phenotypic methods. PCR was used to identify the bla TEM , bla SHV and bla CTXM genes in ESBL and AmpC-positive isolates. Results Our results revealed that among 300 urine samples, 105 (35%) were positive for E. coli . The data showed that the highest and the lowest resistance rates were observed against nalidixic acid (82.1%), and imipenem (2.8%), respectively. The prevalence of ESBLs and AmpC-β-lactamase, in the E. coli isolates was 41% and 9.5% respectively. bla CTXM was the commonest genotype (93%). Phylogenetic group distribution was as follow: B1 2.8%, A 14.2%, B2 61.9%, and D 4.6%. Our result showed that most of the virulence genes belonged to group B2 and also several virulence genes such as hlyA , cnf-1 , and papGII genes were positively associated with group B2. Conclusion Among E. coli strains isolated from patients with UTIs, different features phylogroups, with special virulence factors, could cause severe infection. Awareness about the Virulence patterns distribution among Phylogenetic groups of UPEC could greatly aid in confine and prevent the development of lethal infection caused by these strains.

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“…Infections caused by antimicrobial-resistant microorganisms such as Staphylococcus aureus and Enterobacteriaceae (O'Gara 2017, Price et al 2017) increase hospitalization and mortality rates, as well as health care costs (Cosgrove andCarmeli 2003, de Kraker et al 2011). Pathogens carrying resistance genes to antibiotics of clinical relevance have been isolated from recreational and other surface waters worldwide (Arvanitidou et al 2001, Huijbers et al 2015, Leonard et al 2015, Sukumaran and Hatha 2015, Young et al 2016, though the significance of beaches as reservoirs for, and transmitters of, antibiotic resistance genes is not well understood (Allen et al 2010). These microorganisms, unlike FIB, can be directly associated with adverse human health outcomes, and have shown increases in resistance coinciding with temperature increases (MacFadden et al 2018).…”

Section: Contaminants Of Emerging Concernmentioning

confidence: 99%

Impacts of a Changing Earth on Microbial Dynamics and Human Health Risks in the Continuum between Beach Water and Sand

Weiskerger

Brandão

Ahmed

et al. 2019

Preprint

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Humans may be exposed to microbial pathogens at recreational beaches via environmental sources, such as water, sand, and aerosols. Although infectious disease risk from exposure to waterborne pathogens has been an active area of research for decades, sand is a relatively unexplored reservoir of pathogens and fecal indicator bacteria (FIB). Beach sand and water habitats provide unique advantages and challenges to pathogen introduction, growth, and persistence, as well as continuous exchange between habitats. Models of FIB and pathogen fate and transport in sandy beach habitats can help predict the risk of infectious disease from recreational water use, but filling knowledge gaps such as decay rates and potential for microbial growth in beach habitats is necessary for accurate modeling. Climatic variability, whether natural or anthropogenically-induced, adds complexity to predictive modeling, but may increase human exposure to waterborne pathogens via extreme weather events, warming of water bodies and sea level rise in many regions. The popularity of human recreational beach activities, combined with predicted climate change scenarios, could amplify the risk of human exposure to pathogens and related illnesses. Other global change trends such as increased population growth and urbanization are expected to exacerbate contamination events and the predicted impacts of increasing levels of waterborne pathogens on human health. Such changes will alter microbial population dynamics in beach habitats, and will consequently affect the assumptions and relationships used in population models and quantitative microbial risk assessment (QMRA). Here, we discuss the literature on microbial population and transport dynamics in sand-water continuum habitats at beaches, how these dynamics can be modeled, and how climate change and other anthropogenic influences (e.g., land use, urbanization) should be considered when using and developing more holistic, beachshed-based models.

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Antibiotic resistance and virulence genes of extraintestinal pathogenic Escherichia coli from tropical estuary, south India

Cited by 8 publications

References 44 publications

Genetic relatedness, phylogenetic groups, antibiotic resistance, and virulence genes associated with ExPEC in Escherichia coli isolates from finfish and shellfish

Genetic relatedness, phylogenetic groups, antibiotic resistance, and virulence genes associated with ExPEC in Escherichia coli isolates from finfish and shellfish

Pathogenic features of urinary Escherichia coli strains causing Asymptomatic Bacteriuria during Pregnancy

Impacts of a Changing Earth on Microbial Dynamics and Human Health Risks in the Continuum between Beach Water and Sand

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