51
|
Zhang Y, Schmidt JW, Arthur TM, Wheeler TL, Wang B. A Comparative Quantitative Assessment of Human Exposure to Various Antimicrobial-Resistant Bacteria among U.S. Ground Beef Consumers. J Food Prot 2021; 84:736-759. [PMID: 33270822 DOI: 10.4315/jfp-20-154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 12/02/2020] [Indexed: 12/27/2022]
Abstract
ABSTRACT Consumption of animal-derived meat products is suspected as an important exposure route to antimicrobial resistance, as the presence of antimicrobial-resistant bacteria (ARB) along the beef supply chain is well documented. A retail-to-fork quantitative exposure assessment was established to compare consumers' exposure to various ARB due to the consumption of ground beef with and without "raised without antibiotics" claims and to inform potential exposure mitigation strategies related to consumer practices. The microbial agents evaluated included Escherichia coli, tetracycline-resistant (TETr) E. coli, third-generation cephalosporin-resistant E. coli,Salmonella enterica, TETrS. enterica, third-generation cephalosporin-resistant S. enterica, nalidixic acid-resistant S. enterica, Enterococcus spp., TETrEnterococcus spp., erythromycin-resistant Enterococcus spp., Staphylococcus aureus, and methicillin-resistant S. aureus. The final model outputs were the probability of exposure to at least 0 to 6 log CFU microorganisms per serving of ground beef at the time of consumption. It was estimated that tetracycline resistance was more prevalent in ground beef compared with other types of resistance, among which the predicted average probability of ingesting TETrEnterococcus was highest (6.2% of ingesting at least 0 log CFU per serving), followed by TETrE. coli (3.1%) and TETrSalmonella (0.0001%), given common product purchase preferences and preparation behaviors among beef consumers in the United States. The effectiveness of consumer-related interventions was estimated by simulating the differences in exposure as a result of changes in consumer practices in purchasing, handling, and preparing ground beef. The results indicated that proper use of recommended safe cooking and food preparation practices mitigates ARB exposure more effectively than choosing raised without antibiotics compared with conventional beef. HIGHLIGHTS
Collapse
Affiliation(s)
- Yangjunna Zhang
- Department of Food Science and Technology, Institute of Agricultural Sciences and Natural Resources, University of Nebraska-Lincoln, Lincoln, Nebraska 68588
| | - John W Schmidt
- Roman L. Hruska U.S. Meat Animal Research Center, U.S. Department of Agriculture, Clay Center, Nebraska 68933, USA
| | - Terrance M Arthur
- Roman L. Hruska U.S. Meat Animal Research Center, U.S. Department of Agriculture, Clay Center, Nebraska 68933, USA
| | - Tommy L Wheeler
- Roman L. Hruska U.S. Meat Animal Research Center, U.S. Department of Agriculture, Clay Center, Nebraska 68933, USA
| | - Bing Wang
- Department of Food Science and Technology, Institute of Agricultural Sciences and Natural Resources, University of Nebraska-Lincoln, Lincoln, Nebraska 68588.,(ORCID: https://orcid.org/0000-0003-0174-2252 [B.W.])
| |
Collapse
|
52
|
Law A, Solano O, Brown CJ, Hunter SS, Fagnan M, Top EM, Stalder T. Biosolids as a Source of Antibiotic Resistance Plasmids for Commensal and Pathogenic Bacteria. Front Microbiol 2021; 12:606409. [PMID: 33967971 PMCID: PMC8098119 DOI: 10.3389/fmicb.2021.606409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/09/2021] [Indexed: 12/05/2022] Open
Abstract
Antibiotic resistance (AR) is a threat to modern medicine, and plasmids are driving the global spread of AR by horizontal gene transfer across microbiomes and environments. Determining the mobile resistome responsible for this spread of AR among environments is essential in our efforts to attenuate the current crisis. Biosolids are a wastewater treatment plant (WWTP) byproduct used globally as fertilizer in agriculture. Here, we investigated the mobile resistome of biosolids that are used as fertilizer. This was done by capturing resistance plasmids that can transfer to human pathogens and commensal bacteria. We used a higher-throughput version of the exogenous plasmid isolation approach by mixing several ESKAPE pathogens and a commensal Escherichia coli with biosolids and screening for newly acquired resistance to about 10 antibiotics in these strains. Six unique resistance plasmids transferred to Salmonella typhimurium, Klebsiella aerogenes, and E. coli. All the plasmids were self-transferable and carried 3-6 antibiotic resistance genes (ARG) conferring resistance to 2-4 antibiotic classes. These plasmids-borne resistance genes were further embedded in genetic elements promoting intracellular recombination (i.e., transposons or class 1 integrons). The plasmids belonged to the broad-host-range plasmid (BHR) groups IncP-1 or PromA. Several of them were persistent in their new hosts when grown in the absence of antibiotics, suggesting that the newly acquired drug resistance traits would be sustained over time. This study highlights the role of BHRs in the spread of ARG between environmental bacteria and human pathogens and commensals, where they may persist. The work further emphasizes biosolids as potential vehicles of highly mobile plasmid-borne antibiotic resistance genes.
Collapse
Affiliation(s)
- Aaron Law
- Department of Biological Sciences, University of Idaho, Moscow, ID, United States
| | - Olubunmi Solano
- Department of Biological Sciences, University of Idaho, Moscow, ID, United States
- Department of Biological Sciences, Columbia University, New York, NY, United States
| | - Celeste J. Brown
- Department of Biological Sciences, University of Idaho, Moscow, ID, United States
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, United States
| | - Samuel S. Hunter
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, United States
- UC-Davis Genome Center, Davis, CA, United States
| | - Matt Fagnan
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, United States
| | - Eva M. Top
- Department of Biological Sciences, University of Idaho, Moscow, ID, United States
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, United States
| | - Thibault Stalder
- Department of Biological Sciences, University of Idaho, Moscow, ID, United States
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, United States
| |
Collapse
|
53
|
Viudes-de-Castro MP, Marco-Jimenez F, Vicente JS, Marin C. Antibacterial Activity of Some Molecules Added to Rabbit Semen Extender as Alternative to Antibiotics. Animals (Basel) 2021; 11:ani11041178. [PMID: 33924203 PMCID: PMC8074584 DOI: 10.3390/ani11041178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/07/2021] [Accepted: 04/17/2021] [Indexed: 12/16/2022] Open
Abstract
Simple Summary This study was conducted to evaluate the antibacterial activity of two aminopeptidase inhibitors and chitosan-based nanoparticles in liquid-stored rabbit semen. This study reports that the aminopeptidase inhibitors used to prevent bacterial growth could be used in semen extender as a suitable alternative to antibiotics. Abstract Although great attention is paid to hygiene during semen collection and processing, bacteria are commonly found in the semen of healthy fertile males of different species. As the storage of extended semen might facilitate bacterial growth, extenders are commonly supplemented with antibiotics. This study aimed to evaluate the antibacterial activity of ethylenediaminetetraacetic acid (EDTA), bestatin and chitosan-based nanoparticles added to rabbit semen extender and their effect on reproductive performance under field conditions. Four different extenders were tested, supplemented with antibiotics (TCG+AB), with EDTA and bestatin (EB), with EDTA, bestatin and chitosan-based nanoparticles (QEB) or without antibiotics (TCG-AB). Extended semen was cooled at 15 °C for three days. Cooled samples were examined for bacterial growth and semen quality every 24 h for 3 days. The enterobacteria count increased considerably during storage at 72 h in semen extended with TCG+AB and TCG-AB, while extenders EB and QEB showed a bacteriostatic effect over time. After 24, 48 and 72 h, quality characteristics were retained in all groups, with no significant motility differences, either in acrosome integrity, membrane functionality or the viability of spermatozoa. Additionally, bacterial concentration present in fresh semen did not affect reproductive performance. In conclusion, EDTA and bestatin exerted a potent bacteriostatic effect over time and could be used as an alternative to conventional antibiotics in rabbit semen extenders.
Collapse
Affiliation(s)
- María Pilar Viudes-de-Castro
- Centro de Investigación y Tecnología Animal, Instituto Valenciano de Investigaciones Agrarias (CITA-IVIA), Polígono La Esperanza n° 100, 12400 Segorbe, Spain
- Correspondence:
| | - Francisco Marco-Jimenez
- Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, 46022 Valencia, Spain; (F.M.-J.); (J.S.V.)
| | - José S. Vicente
- Instituto de Ciencia y Tecnología Animal, Universitat Politècnica de València, 46022 Valencia, Spain; (F.M.-J.); (J.S.V.)
| | - Clara Marin
- Departamento de Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Instituto de Ciencias Biomédicas, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Avenida Seminario s/n, 46113 Moncada, Spain;
| |
Collapse
|
54
|
Sweileh WM. Global research activity on antimicrobial resistance in food-producing animals. ACTA ACUST UNITED AC 2021; 79:49. [PMID: 33849636 PMCID: PMC8045364 DOI: 10.1186/s13690-021-00572-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 03/31/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a global challenge that requires a "One Health" approach to achieve better public health outcomes for people, animals, and the environment. Numerous bibliometric studies were published on AMR in humans. However, none was published in food-producing animals. The current study aimed at assessing and analyzing scientific publications on AMR in food-producing animals. METHOD A validated search query was developed and entered in Scopus advanced search function to retrieve and quantitatively analyze relevant documents. Bibliometric indicators and mapping were presented. The study period was from 2000 to 2019. RESULTS The search query retrieved 2852 documents. During the period from 2015 to 2019, approximately 48% of the retrieved documents were published. The article about the discovery of plasmid-mediated colistin resistance in pigs received the highest number of citations (n = 1970). The Journal of Food Protection (n = 123; 4.3%) ranked first in the number of publications while the Applied and Environmental Microbiology journal ranked first in the number of citations per document. The USA led with 576 (20.2%) documents followed by China (n = 375; 13.1%). When the number of publications was standardized by income and population size, India (n = 51.5) ranked first followed by China (n = 38.3) and Brazil (n = 13.4). The growth of publications from China exceeded that of the USA in the last 3 years of the study period. Research collaboration in this field was inadequate. Mapping author keywords showed that E. coli, Salmonella, poultry, Campylobacter, chicken, cattle, and resistant genes were most frequent. The retrieved documents existed in five research themes. The largest research theme was about AMR in Salmonella in food-producing animals. The most recent research theme was about the dissemination and molecular transfer of AMR genes into the environment and among different bacterial strains. CONCLUSION Hot spots of research on AMR in food-producing animals match the world regions of reported hot spots of AMR in animals. Research collaboration in this field is of great importance, especially with low- and middle-income countries. Data on AMR need to be collected nationally and internationally to implement the "One Health" approach in the fight against AMR.
Collapse
Affiliation(s)
- Waleed M Sweileh
- Department of Physiology, Pharmacology/Toxicology, Division of Biomedical Sciences, College of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
| |
Collapse
|
55
|
Antibiotic Use in Broiler Poultry Farms in Kathmandu Valley of Nepal: Which Antibiotics and Why? Trop Med Infect Dis 2021; 6:tropicalmed6020047. [PMID: 33916475 PMCID: PMC8167706 DOI: 10.3390/tropicalmed6020047] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/22/2021] [Accepted: 03/30/2021] [Indexed: 12/17/2022] Open
Abstract
Inappropriate antibiotic use in food-producing animals is associated with the emergence and spread of antibiotic resistance. In industrial broiler poultry farms in three districts of Kathmandu valley, Nepal, we assessed antibiotic use prevalence, and their classes, types, and quantities. A cross-sectional questionnaire study involving field visits to large poultry farms (flock size ≥ 3000) of the Kathmandu, Bhaktapur, and Lalitpur districts was conducted. Of 30 farms (total flock size 104,200; range 3000–6000), prevalence of antibiotic use was 90% (95% CI: 73–98%). Six (22%) farms used antibiotics as prophylaxis, while 21 (78%) used it for therapeutics. Seven antibiotics from six classes (including quinolones, macrolides, and polymyxins) were used. The most commonly used antibiotics were tylosin (47%), colistin (47%), and dual therapies with neomycin and doxycycline (33%). A total of 50,000 grams of antibiotics (total weight including active and inactive ingredients) were used (0.5 grams/chicken/45 days of flock life) with eight (26%) farms using more than two antibiotics. No farms had records on clinical indications for prophylaxis or treatment. No post-mortem records of sick birds were available. Prevalence of antibiotic use in broiler farms of Kathmandu valley is high and includes “highest priority critically important antibiotics” for human use, with direct implications on public health.
Collapse
|
56
|
Ewbank AC, Esperón F, Sacristán C, Sacristán I, Neves E, Costa-Silva S, Antonelli M, Rocha Lorenço J, Kolesnikovas CKM, Catão-Dias JL. Occurrence and Quantification of Antimicrobial Resistance Genes in the Gastrointestinal Microbiome of Two Wild Seabird Species With Contrasting Behaviors. Front Vet Sci 2021; 8:651781. [PMID: 33829054 PMCID: PMC8019699 DOI: 10.3389/fvets.2021.651781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/24/2021] [Indexed: 01/24/2023] Open
Abstract
Antimicrobial resistance genes (ARGs) are environmental pollutants and anthropization indicators. We evaluated human interference in the marine ecosystem through the ocurrence and quantification (real-time PCRs) of 21 plasmid-mediated ARGs in enema samples of 25 wild seabirds, upon admission into rehabilitation: kelp gull (Larus dominicanus, n = 14) and Magellanic penguin (Spheniscus magellanicus, n = 11). Overall, higher resistance values were observed in kelp gulls (non-migratory coastal synanthropic) in comparison with Magellanic penguins (migratory pelagic non-synanthropic). There were significant differences between species (respectively, kelp gull and Magellanic penguin): ARGs occurrence (bla TEM [p = 0.032]; tetM [p = 0.015]; tetA [p = 0.003]; and sulII [p = 0.007]), mean number of ARGs per sample (p = 0.031), ARGs mean load percentage (aadA [p = 0.045], tetA [p = 0.031], tetM [p = 0.016], bla TEM [p = 0.032], sulII [p = 0.008]), percentage of genes conferring resistance to an antimicrobial class (betalactams [p = 0.036] and sulfonamides [p = 0.033]), mean number of genes conferring resistance to one or more antimicrobial classes (p = 0.024]), percentage of multiresistant microbiomes (p = 0.032), and clustering (p = 0.006). These differences are likely due to these species' contrasting biology and ecology - key factors in the epidemiology of ARGs in seabirds. Additionally, this is the first report of mecA in seabirds in the Americas. Further studies are necessary to clarify the occurrence and diversity of ARGs in seabirds, and their role as potential sources of infection and dispersal within the One Health chain of ARGs.
Collapse
Affiliation(s)
- Ana Carolina Ewbank
- Laboratory of Wildlife Comparative Pathology, Department of Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | - Fernando Esperón
- Group of Epidemiology and Environmental Health, Animal Health Research Centre (INIA-CISA), Madrid, Spain
| | - Carlos Sacristán
- Laboratory of Wildlife Comparative Pathology, Department of Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | - Irene Sacristán
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Elena Neves
- Group of Epidemiology and Environmental Health, Animal Health Research Centre (INIA-CISA), Madrid, Spain
| | | | | | | | | | - José Luiz Catão-Dias
- Laboratory of Wildlife Comparative Pathology, Department of Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
57
|
Luu QH, Nguyen TLA, Pham TN, Vo NG, Padungtod P. Antimicrobial use in household, semi-industrialized, and industrialized pig and poultry farms in Viet Nam. Prev Vet Med 2021; 189:105292. [PMID: 33621709 DOI: 10.1016/j.prevetmed.2021.105292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 11/28/2022]
Abstract
The use and misuse of antimicrobials in livestock production contributes to increasing antimicrobial resistance (AMR). Antimicrobial use (AMU), has been identified as a problem in Viet Nam. There were many identified drivers of AMU in Viet Nam such as lack of access to veterinary services, easy access to cheap over-the-counter antimicrobials, and insufficient farm biosecurity. This study included chicken farmers (n = 540) and pig farmers (n = 540) from household, semi-industrialized, and industrialized farms in the North, Central, and South of Viet Nam. The objective of this study was to determine farmers rationale behind AMU on their farms and their usage patterns. On pig farms, 98.1% of the farmers reported use of antimicrobials in their production. On chicken farms, 87.9% reported use of antimicrobials in their production. The results of the survey showed that the three main purposes of AMU were treatment of sick animals, disease prevention, and weight gain. Treatment accounted for 81.3% in pig farming and 62.1% in chicken farming. The main reason to start antimicrobial therapy in pig and chicken production was observation of the first clinical signs of disease (73.9% of the pig farmers and 74.9% of chicken farmers). The proportion of industrial pig farms performing diagnostic tests before using antimicrobials was singnificantly (p < 0.05) higher than household farms (OR = 45.3). The proportion of chicken farmers who used diagnostic tests before using antimicrobials on semi-industrial (OR = 4.1) and industrial farms (OR = 26.7) were significantly higher compared with household farms. Through encouraging the prudent use of antimicrobials in animal husbandry we can reduce the use of antimicrobials at the primary production level and thereby lowering the risk of AMR.
Collapse
Affiliation(s)
- Quynh Huong Luu
- National Institute of Veterinary Research, No. 86, Truong Chinh road, Phuong Mai ward, Dong Da district, Ha Noi, Viet Nam.
| | - Thi Lan Anh Nguyen
- National Institute of Veterinary Research, No. 86, Truong Chinh road, Phuong Mai ward, Dong Da district, Ha Noi, Viet Nam.
| | - Thi Ngoc Pham
- National Institute of Veterinary Research, No. 86, Truong Chinh road, Phuong Mai ward, Dong Da district, Ha Noi, Viet Nam.
| | - Ngan Giang Vo
- Food and Agriculture Organization of the United Nations Country Office for Viet Nam Green One UN House Building, No. 304, Kim Ma Street, Hanoi, Viet Nam.
| | - Pawin Padungtod
- Food and Agriculture Organization of the United Nations Country Office for Viet Nam Green One UN House Building, No. 304, Kim Ma Street, Hanoi, Viet Nam.
| |
Collapse
|
58
|
ANTIBIOTIC RESISTANCE IN ESCHERICHIA COLI AND ENTEROCOCCUS SPP. ISOLATED FROM UNGULATES AT A ZOOLOGICAL COLLECTION IN THE UNITED KINGDOM. J Zoo Wildl Med 2021; 51:761-770. [PMID: 33480556 DOI: 10.1638/2020-0096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2020] [Indexed: 11/21/2022] Open
Abstract
Increase of antimicrobial resistance (AMR) is a global threat to health. The AMR profile of bacteria isolated from domesticated animals and free-ranging wildlife has been studied, but there are relatively few studies of bacteria isolated from captive wild animals. Understanding the dynamics of AMR in different populations is key to minimizing emergence of resistance and to preserve the efficacy of antimicrobials. In this study, fecal samples were collected from 17 species of healthy ungulates from a zoological collection in southeast England, which yielded 39 Escherichia coli and 55 Enterococcus spp. isolates for further analysis. Antibiotic sensitivity was investigated using agar disk diffusion. Escherichia coli isolates were resistant to a range of antibiotics, with resistance to ampicillin being the most common (28%). All E. coli isolates were susceptible to apramycin, enrofloxacin, chloramphenicol, and florfenicol. None tested positive for extended-spectrum beta-lactamase or AmpC activity. Seven of 39 (18%) E. coli isolates were resistant to three or more antibiotic classes. The E. coli isolates were further analyzed using multilocus sequence typing, which identified four pairs of identical sequence type isolates and 27 diverse strains. The Enterococcus spp. isolates were resistant to a range of antibiotics, with resistance to cefpodoxime seen in 95% of isolates. All Enterococcus spp. isolates were susceptible to ampicillin, gentamicin, chloramphenicol, and vancomycin. This study identified multidrug-resistant phenotypes in enterobacterial isolates that were like those commonly found in domestic ungulates. There was no apparent spatial clustering of the resistance profiles within the zoo. Review of the medical records of individual animals showed no direct relation to the AMR profiles observed. Observed resistance to antibiotics rarely or never used may have been due to coselection or directly acquired from other sources.
Collapse
|
59
|
Farnesane-Type Sesquiterpenoids with Antibiotic Activity from Chiliadenus lopadusanus. Antibiotics (Basel) 2021; 10:antibiotics10020148. [PMID: 33540688 PMCID: PMC7913021 DOI: 10.3390/antibiotics10020148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 01/25/2021] [Accepted: 01/28/2021] [Indexed: 02/04/2023] Open
Abstract
Chiliadenus lopadusanus Brullo is an Asteraceae plant species endemic to Lampedusa island, the largest island of the Pelage archipelago, Italy. The organic extract of its whole aerial parts, showing antibiotic activity against Staphylococcus aureus and Acinetobacter baumannii, wasfractionated employing bioguided purification procedures affording three main farnesane-type sesquiterpenoids. They were identified by spectroscopic methods (NMR and ESIMS data) as the (E)-3,7,11-trimethyldodeca-1,6,10-triene-3,9-diol, (E)-10-hydroxy-2,6,10-trimethyldodeca-2,6,11- trien-4-one and (E)-10-hydroxy-2,6,10-trimethyl-dodeca-6,11-dien-4-one, commonly named 9-hydroxynerolidol, 9-oxonerolidol, and chiliadenol B, respectively. These three sesquiterpenes, isolated for the first time from C. lopadusanus, were tested on methicillin-resistant S. aureus and A. baumannii showing antibacterial and antibiofilm activities. This plant could be used as a source to isolate secondary metabolites as potential new antibiotics.
Collapse
|
60
|
Occurrence of Antibiotic Resistance Genes in Hermetia illucens Larvae Fed Coffee Silverskin Enriched with Schizochytrium limacinum or Isochrysis galbana Microalgae. Genes (Basel) 2021; 12:genes12020213. [PMID: 33535615 PMCID: PMC7912857 DOI: 10.3390/genes12020213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023] Open
Abstract
Hermetia illucens larvae are among the most promising insects for use as food or feed ingredients due to their ability to convert organic waste into biomass with high-quality proteins. In this novel food or feed source, the absence of antibiotic-resistant bacteria and their antibiotic resistance (AR) genes, which could be horizontally transferred to animal or human pathogens through the food chain, must be guaranteed. This study was conducted to enhance the extremely scarce knowledge on the occurrence of AR genes conferring resistance to the main classes of antibiotics in a rearing chain of H. illucens larvae and how they were affected by rearing substrates based on coffee silverskin supplemented with increasing percentages of Schizochytrium limacinum or Isochrysis galbana microalgae. Overall, the PCR and nested PCR assays showed a high prevalence of tetracycline resistance genes. No significant effect of rearing substrates on the distribution of the AR genes in the H. illucens larvae was observed. In contrast, the frass samples were characterized by a significant accumulation of AR genes, and this phenomenon was particularly evident for the samples collected after rearing H. illucens larvae on substrates supplemented with high percentages (>20%) of I. galbana. The latter finding indicates potential safety concerns in reusing frass in agriculture.
Collapse
|
61
|
Pet and Stray Dogs as Reservoirs of Antimicrobial-Resistant Escherichia coli. Int J Microbiol 2021; 2021:6664557. [PMID: 33564312 PMCID: PMC7850822 DOI: 10.1155/2021/6664557] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/28/2020] [Accepted: 01/14/2021] [Indexed: 11/17/2022] Open
Abstract
The close contact between dogs and humans creates the best bridge for interspecies transmission of antimicrobial-resistant bacteria. The surveillance of its resistance including the detection of extended-spectrum beta-lactamases (ESBLs) in Escherichia coli as indicator bacteria is an important tool to control the use of antimicrobials. The aim of this research was to evaluate the E. coli resistance in strains by phenotypic methods, isolated from pet and stray dogs of La Plata city, Argentina. Faecal samples were collected using rectal swabs from 50 dogs with owners (home dogs = HD) and 50 homeless dogs (stray dogs = SD). They were cultured in 3 MacConkey agar plates, with and without antibiotics (ciprofloxacin and cefotaxime). 197 strains were isolated, of which only 95 strains were biochemically identified as E. coli, 46 strains were from HD, and 49 were from SD. Antimicrobial susceptibility was evaluated by the Kirby-Bauer disk diffusion method. The most prevalent resistance was for tetracycline, streptomycin, and ampicillin. In both groups, the level of resistance to 3rd generation cephalosporins was high, and there were multiresistant strains. There was a higher level of antimicrobial resistance in strains from SD compared to HD. There were 8% of strains suspected of being ESBLs among samples of HD and 36% of SD. One (2%) of the strains isolated from HD and 11 (22%) from SD were phenotypically confirmed as ESBL. Pets and stray dogs are a potential source of E. coli antibiotic resistance in Argentina; therefore, its surveillance must be guaranteed.
Collapse
|
62
|
Kamel NM, Farghaly EM, Shawky HM, Samir A. Molecular characterisation of extended-spectrum β-lactamase-producing Escherichia coli and Salmonella isolated from poultry and poultry products in Egypt. BULGARIAN JOURNAL OF VETERINARY MEDICINE 2021. [DOI: 10.15547/bjvm.2019-0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Extended-spectrum β-lactamase (ESBL) producing E. coli and salmonellae have spread rapidly worldwide and pose a serious threat to human and animal health. The present study was conduct-ed to determine the prevalence of ESBL-producing E.coli and salmonellae, to perform molecular characterisation of the ESBL-related bla genes, including blaTEM, blaSHV and blaCTX, and the sus-ceptibilities of these bacteria to various antimicrobial agents. From a total of 300 poultry samples, 25 and 20 samples were recognised as Salmonella and E. coli, respectively by microbiological and molecular methods. All E. coli and Salmonella isolates were positive for an ESBL phenotype. Mo-lecular detection for antibiotic resistance gene revealed blaTEM in all isolates of salmonellae and E. coli (100%), while blaSHV was detected in 5 (20%) and 2 (10%) of salmonellae and E. coli isolates, respectively. None of the isolates contained blaCTX gene. Serotyping of Salmonella spp. in chick-ens revealed that S. enteritidis was the major isolates followed by S. Infantis (21.4%), S. Kentucky (14.2%) and S. Typhimurium, S. Kapemba, S. Newport, S. Vejle and S. Magherafelt were detected at 7.1% respectively. S. Infantis was the major isolate detected in chicks (60%), while in ducks S. Typhimurium and S. Blegdam were identified. In ducklings, S. Sinchew, S. Infantis and S. Sekon-di were equally prevalent. Only S. Newmexico was identified in poultry products. E. coli in chick-en were serotyped into O1, O8, O29, O125, O128 and O157. In chicks, O29 and O126 serotypes were detected. In poultry products only O8 was detected. The results indicate that ESBL frequen-cy has reached an alarming level in poultry isolates in Egypt, with TEM enzymes being the pre-dominant β-lactamases detected.
Collapse
|
63
|
Fadare FT, Adefisoye MA, Okoh AI. Occurrence, identification, and antibiogram signatures of selected Enterobacteriaceae from Tsomo and Tyhume rivers in the Eastern Cape Province, Republic of South Africa. PLoS One 2020; 15:e0238084. [PMID: 33284819 PMCID: PMC7721149 DOI: 10.1371/journal.pone.0238084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022] Open
Abstract
The increasing occurrence of multidrug-resistant Enterobacteriaceae in clinical and environmental settings has been seen globally as a complex public health challenge, mostly in the developing nations where they significantly impact freshwater used for a variety of domestic purposes and irrigation. This paper detail the occurrence and antibiogram signatures of the Enterobacteriaceae community in Tsomo and Tyhume rivers within the Eastern Cape Province, the Republic of South Africa, using standard methods. The average distribution of the presumptive Enterobacteriaceae in the rivers ranged from 1 × 102 CFU/100ml to 1.95 × 104 CFU/100ml. We confirmed 56 (70.8%) out of 79 presumptive Enterobacteriaceae isolated being species within the family Enterobacteriaceae through the Matrix-Assisted Laser Desorption Ionization Time of Flight technique. Citrobacter-, Enterobacter-, Klebsiella species, and Escherichia coli were selected (n = 40) due to their pathogenic potentials for antibiogram profiling. The results of the antibiotic susceptibility testing gave a revelation that all the isolates were phenotypically multidrug-resistant. The resistance against ampicillin (95%), tetracycline and doxycycline (88%), and trimethoprim-sulfamethoxazole (85%) antibiotics were most prevalent. The Multiple Antibiotic Resistance indices stretched from 0.22 to 0.94, with the highest index observed in a C. freundii isolate. Molecular characterisation using the PCR technique revealed the dominance of blaTEM (30%; 12/40) among the eight groups of β-lactams resistance determinants assayed. The prevalence of others was blaCTX-M genes including group 1, 2 and 9 (27.5%), blaSHV (20%), blaOXA-1-like (10%), blaPER (2.5%), and blaVEB (0%). The frequencies of the resistance determinants for the carbapenems were blaKPC (17.6%), blaGES (11.8%), blaIMP (11.8%), blaVIM (11.8%), and blaOXA-48-like (5.9%). Out of the six plasmid-mediated AmpC (pAmpC) genes investigated blaACC, blaEBC, blaFOX, blaCIT, blaDHA, and blaMOX, only the first four were detected. In this category, the most dominant was blaEBC, with 18.4% (7/38). The prevalence of the non-β-lactamases include tetA (33.3%), tetB (30.5%), tetC (2.8%), tetD (11.1%), tetK (0%), tetM (13.9%), catI (12%), catII (68%), sulI (14.3%), sulII (22.9%) and aadA (8.3%). Notably, a C. koseri harboured 42.8% (12/28) of the genes assayed for which includes five of the ESBL genes (including the only blaPER detected in this study), two of the pAmpC resistance genes (blaACC and blaCIT), and five of the non-β-lactamase genes. This study gives the first report on C. koseri exhibiting the co-occurrence of ESBL/AmpC β-lactamase genes from the environment to the best of our knowledge. The detection of a blaPER producing Citrobacter spp. in this study is remarkable. These findings provide evidence that freshwater serves as reservoirs of antimicrobial resistance determinants, which can then be easily transferred to human beings via the food chain and water.
Collapse
Affiliation(s)
- Folake Temitope Fadare
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
- * E-mail:
| | - Martins Ajibade Adefisoye
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
| | - Anthony Ifeanyi Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
| |
Collapse
|
64
|
Zheng Y, Fan L, Dong Y, Li D, Zhao L, Yuan X, Wang L, Zhao S. Determination of Sulfonamide Residues in Livestock and Poultry Manure Using Carbon Nanotube Extraction Combined with UPLC-MS/MS. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01910-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
65
|
Prevalence and Epidemiology of Multidrug-Resistant Pathogens in the Food Chain and the Urban Environment in Northwestern Germany. Antibiotics (Basel) 2020; 9:antibiotics9100708. [PMID: 33081274 PMCID: PMC7603066 DOI: 10.3390/antibiotics9100708] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 10/08/2020] [Accepted: 10/15/2020] [Indexed: 12/17/2022] Open
Abstract
The surveillance of antimicrobial resistance among humans and food-producing animals is important to monitor the zoonotic transmission of multidrug-resistant bacteria (MDRB). We assessed the prevalence of four MDRB within the meat production chain, including extended-spectrum β-lactamase (ESBL)-producing, carbapenemase-producing Enterobacterales (CPE) and colistin-resistant Enterobacterales (Col-E), as well as vancomycin-resistant enterococci (VRE). In total, 505 samples from four stages of meat production, i.e., slaughterhouses, meat-processing plants, fresh food products and the urban environment, were collected in northwestern Germany in 2018/2019 and screened for the presence of MDRB using both culture-based and PCR-based techniques. We detected genes encoding for carbapenemases in 9–56% (blaOXA-48, blaKPC, blaNDM, blaVIM) and colistin resistance-encoding mcr genes in 9–26% of the samples from all stages. Culture-based analysis found CPE and VRE only in environmental samples (11% and 7%, respectively), but Col-E and ESBL-producers in 1–7% and 12–46% of samples from all stages, respectively. Overall, our results showed that ESBL-producers and mcr-carrying Col-E were common in food-producing animals at slaughterhouses, in meat-processing plants and in food items at retail, while CPE and VRE were only found in the environment. The discrepancy between detected carbapenemase genes and isolated CPE emphasizes the need for more sensitive detection methods for CPE monitoring.
Collapse
|
66
|
Gibson JS, Wai H, Oo SSML, Hmwe EMM, Wai SS, Htun LL, Lim HP, Latt ZM, Henning J. Antimicrobials use and resistance on integrated poultry-fish farming systems in the Ayeyarwady Delta of Myanmar. Sci Rep 2020; 10:16149. [PMID: 32999333 PMCID: PMC7528085 DOI: 10.1038/s41598-020-73076-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 09/07/2020] [Indexed: 11/21/2022] Open
Abstract
Antimicrobials are used to support livestock health and productivity, but might pose a risk for the development of antimicrobial resistance; in particular, when multiple livestock species are raised together in production systems. On integrated chicken-fish farms, chickens are raised over fish ponds and poultry faeces is excreted into the ponds. We investigated antimicrobial usage and the antimicrobial susceptibility of Escherichia coli cultured from poultry faeces on 301 integrated farms in Ayeyarwady Delta of Myanmar. Antimicrobials were used by 92.4% of farmers for chickens, but they were not applied to fish. The most common antimicrobials used were Octamix (amoxicillin and colistin sulfate) on 28.4%, enrofloxacin on 21.0% and amoxicillin on 16% of farms. Overall, 83.1% (152/183) of the E. coli were resistant to at least one antimicrobial. The highest level of resistance was to amoxicillin (54.6%), tetracycline (39.9%), sulfamethoxazole/trimethoprim (35.5%) and enrofloxacin (34.4%). Multidrug resistance was identified in 42.4% of isolates. In general, we found similar levels of antimicrobial resistance in non-users of antimicrobials as in users of antimicrobials for more commonly applied antimicrobials. Overall, antimicrobial resistance was lower in chickens on these integrated farms in Myanmar, compared to poultry farms in other countries of South East and East Asia.
Collapse
Affiliation(s)
- Justine S Gibson
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia.
| | - Honey Wai
- University of Veterinary Science, Yezin, Myanmar
| | | | | | - Soe Soe Wai
- University of Veterinary Science, Yezin, Myanmar
| | - Lat Lat Htun
- University of Veterinary Science, Yezin, Myanmar
| | - Hwee Ping Lim
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| | - Zin Min Latt
- Livestock Breeding and Veterinary Department, Nay Pyi Taw, Myanmar
| | - Joerg Henning
- School of Veterinary Science, The University of Queensland, Gatton, QLD, Australia
| |
Collapse
|
67
|
Rahmeh R, Akbar A, Alonaizi T, Kishk M, Shajan A, Akbar B. Characterization and application of antimicrobials produced by Enterococcus faecium S6 isolated from raw camel milk. J Dairy Sci 2020; 103:11106-11115. [PMID: 32981738 DOI: 10.3168/jds.2020-18871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 07/07/2020] [Indexed: 12/12/2022]
Abstract
The emergence of antimicrobial resistance in the food chain and the consumer's demand for safe food without chemical preservatives have generated much interest in natural antimicrobials. Thus, our main goal was to study the mode of action of the crude extract, the enterocins, and the organic acid produced by a bacteriocinogenic Enterococcus faecium strain S6 previously isolated from raw camel milk. Then, we aimed to evaluate their potential application in a food system. These antimicrobials exhibited antimicrobial activity against Listeria monocytogenes, Salmonella enterica, and Escherichia coli. The enterocins were synthesized as primary metabolites beginning at the lag phase, with optimal production at the exponential and stationary phases. The antimicrobials had a direct effect in extending the lag phase of L. monocytogenes, along with a significant inhibitory activity. The organic acid, in particular, inhibited both L. monocytogenes and S. enterica by inducing a total lysis and damage of the cell wall. The enterocins acted on disrupting the cell wall with pore formation, leading to cell death. Moreover, the crude extract revealed a combined inhibitory activity between enterocins and organic acid. Furthermore, the antimicrobials showed promising results through inhibiting L. monocytogenes cells in milk samples up to 1 wk at 4°C.
Collapse
Affiliation(s)
- Rita Rahmeh
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait.
| | - Abrar Akbar
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait
| | - Thnayan Alonaizi
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait
| | - Mohamed Kishk
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait
| | - Anisha Shajan
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait
| | - Batool Akbar
- Biotechnology Program, Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, PO Box 24885 Safat, 13109, Kuwait
| |
Collapse
|
68
|
Silva V, Pereira JE, Maltez L, Ferreira E, Manageiro V, Caniça M, Capelo JL, Igrejas G, Poeta P. Diversity of methicillin-resistant staphylococci among wild Lepus granatensis: first detection of mecA-MRSA in hares. FEMS Microbiol Ecol 2020; 96:5681390. [PMID: 31855250 DOI: 10.1093/femsec/fiz204] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/18/2019] [Indexed: 12/17/2022] Open
Abstract
MRSA in humans, pets and livestock have been widely investigated, nevertheless, there is still little information of MRSA in wild animals. Therefore, this study aimed to investigate the occurrence and antimicrobial resistance profiles of methicillin-resistant staphylococci (MRS) in wild Iberian hares and to characterize their genetic lineages. Samples from 83 wild hares (Lepus granatensis) were collected during the hunting season. Isolation of MRS was accomplish using Oxacillin Resistant Screening Agar medium with 2 mg/L of oxacillin. The susceptibility of the isolates was tested by the Kirby-Bauer disc diffusion method. The presence of resistance and virulence genes was studied by PCR. S. aureus strains were further characterized by multilocus sequence typing, agr, spa and SCCmec typing. From the 83 samples, 12 (14.45%) coagulase-negative staphylococci and 3 (3.6%) MRSA strains were isolated. Nine coagulase-negative isolates showed resistance to at least one antibiotic. One MRSA isolate showed a multidrug-resistant profile with resistances to ß-lactams, aminoglycosides, macrolides and lincosamides. All MRSA strains were ascribed to ST2855, t1190 and SCCmec type III. The frequency of MRSA strains in wild hares was low, nevertheless, the presence of MRSA in game animals is considered a public health problem and may represent a route of transmission between animals and humans.
Collapse
Affiliation(s)
- Vanessa Silva
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Department of Genetics and Biotechnology, Functional Genomics and Proteomics' Unit, University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal.,Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Monte da Caparica, Portugal
| | - José Eduardo Pereira
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Luís Maltez
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Animal and Veterinary Research Centre (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Eugénia Ferreira
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR/HAI), Department of Infectious Diseases, National Institute of Health Dr Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal.,Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, Rua D. Manuel II, 4051-401 Oporto, Portugal
| | - Vera Manageiro
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR/HAI), Department of Infectious Diseases, National Institute of Health Dr Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal.,Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, Rua D. Manuel II, 4051-401 Oporto, Portugal
| | - Manuela Caniça
- National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AMR/HAI), Department of Infectious Diseases, National Institute of Health Dr Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal.,Centre for the Studies of Animal Science, Institute of Agrarian and Agri-Food Sciences and Technologies, Oporto University, Rua D. Manuel II, 4051-401 Oporto, Portugal
| | - José L Capelo
- BIOSCOPE Group, LAQV@REQUIMTE, Chemistry Department, Faculty of Science and Technology, NOVA University of Lisbon, 2829-516 Monte da Caparica, Portugal.,Proteomass Scientific Society, Madan Parque, Rua dos Inventores, 2825-182 Caparica, Portugal
| | - Gilberto Igrejas
- Department of Genetics and Biotechnology, Functional Genomics and Proteomics' Unit, University of Trás-os-Montes and Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal.,Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Monte da Caparica, Portugal
| | - Patrícia Poeta
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD), Quinta de Prados, 5000-801 Vila Real, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, 2829-516 Monte da Caparica, Portugal
| |
Collapse
|
69
|
Yen NTP, Nhung NT, Van NTB, Cuong NV, Kiet BT, Phu DH, Hien VB, Campbell J, Chansiripornchai N, E. Thwaites G, Carrique-Mas JJ. Characterizing Antimicrobial Resistance in Chicken Pathogens: A Step towards Improved Antimicrobial Stewardship in Poultry Production in Vietnam. Antibiotics (Basel) 2020; 9:antibiotics9080499. [PMID: 32784954 PMCID: PMC7460290 DOI: 10.3390/antibiotics9080499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 11/19/2022] Open
Abstract
In the Mekong Delta of Vietnam, farmers use large quantities of antimicrobials to raise small-scale chicken flocks, often including active ingredients regarded of “critical importance’” by the World Health Organization. Due to limitations in laboratory capacity, the choice of antimicrobials normally does not follow any empirical criteria of effectiveness. The aim of this study was to highlight non-critically important antimicrobials against which chicken pathogens are likely to be susceptible as a basis for treatment guidelines. Microtiter broth dilution method was performed to determine the minimal inhibitory concentration (MIC) of 12 commonly used antimicrobials for 58 isolates, including Ornithobacterium rhinotracheale (ORT) (n = 22), Gallibacterium anatis (n = 19), and Avibacterium endocarditidis (n = 17). Unfortunately, internationally accepted breakpoints for resistance in these organisms do not exist. We drew tentative epidemiological cut-offs (TECOFFs) for those antimicrobial-pathogen combinations where MIC distributions suggested the presence of a distinct non-wild-type population. Based on the observed results, doxycycline would be the drug of choice for A.endocarditidis (11.8% presumptive non-wild type) and G. anatis infections (5.3% presumptive non-wild type). A total of 13.6% ORT isolates were non-wild type with regards to oxytetracycline, making it the drug of choice against this pathogen. This study illustrates the challenges in interpreting susceptibility testing results and the need to establish internationally accepted breakpoints for veterinary pathogens.
Collapse
Affiliation(s)
- Nguyen Thi Phuong Yen
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
| | - Nguyen Thi Nhung
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
| | - Nguyen Thi Bich Van
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
| | - Nguyen Van Cuong
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
| | - Bach Tuan Kiet
- Sub-Department of Animal Health and Production, Dong Thap 81000, Vietnam; (B.T.K.); (V.B.H.)
| | - Doan Hoang Phu
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
- Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh 700000, Vietnam
| | - Vo Be Hien
- Sub-Department of Animal Health and Production, Dong Thap 81000, Vietnam; (B.T.K.); (V.B.H.)
| | - James Campbell
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
- Centre for Tropical Medicine and Global Health, Oxford University, Oxford OX3 7FZ, UK
| | | | - Guy E. Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
- Centre for Tropical Medicine and Global Health, Oxford University, Oxford OX3 7FZ, UK
| | - Juan J. Carrique-Mas
- Oxford University Clinical Research Unit, Ho Chi Minh 700000, Vietnam; (N.T.P.Y.); (N.T.N.); (N.T.B.V.); (N.V.C.); (D.H.P.); (J.C.); (G.E.T.)
- Centre for Tropical Medicine and Global Health, Oxford University, Oxford OX3 7FZ, UK
- Correspondence:
| |
Collapse
|
70
|
Wu X, Angkititrakul S, L. Richards A, Pulsrikarn C, Khaengair S, Keosengthong A, Siriwong S, Suksawat F. Risk of Antimicrobial Resistant Non-Typhoidal Salmonella during Asymptomatic Infection Passage between Pet Dogs and Their Human Caregivers in Khon Kaen, Thailand. Antibiotics (Basel) 2020; 9:antibiotics9080477. [PMID: 32759641 PMCID: PMC7460017 DOI: 10.3390/antibiotics9080477] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/31/2020] [Accepted: 07/31/2020] [Indexed: 02/07/2023] Open
Abstract
To explore the risk of antimicrobial resistant (AMR) non-typhoidal Salmonella during asymptomatic infection passage between pet dogs and human caregivers in Khon Kaen, Thailand, one hundred forty paired fecal samples (n = 280) were obtained from companion dogs and their human caregivers, interviewed from 140 households during 2019-2020. The purified Salmonella isolates were serotype-identified and tested for antimicrobial resistance against ampicillin, ciprofloxacin, chloramphenicol, nalidixic acid, streptomycin, sulfamethoxazole-trimethoprim, and tetracycline. The homologous Salmonella isolate pairs (suggesting Salmonella infections may have been due to passage between each one of the pair, or derived from the same source) were subsequently characterized by serotype screening, pulsed field gel electrophoresis (PFGE), and Synchrotron Fourier transform infrared spectroscopy (SR-FTIR). The Salmonella prevalence observed in dogs, 12.86% (18/140), was not significantly different from that observed in humans, 17.86% (25/140) using McNemar's test. The AMR patterns (the patterns among the isolates of pet dogs and caregivers) and the serotypes (thirteen serotypes with 18 isolates from pet dogs plus thirteen serotypes with 25 isolates from humans) between pet dogs and humans were not significantly different using Pearson's chi-squared test. The homologous Salmonella isolates from the Salmonella-present households was 5.13% (2/39). This study demonstrated that the hypothesis that there is a high risk of Salmonella infection passage between dogs and humans with close contact in Khon Kaen is doubtful. Only 5.13% of homologous Salmonella isolates from Salmonella-present households were found in Khon Kaen, Thailand, although the prevalence of Salmonella-positive samples, serotypes, and antimicrobial resistance patterns were quite similar among the two populations.
Collapse
Affiliation(s)
- Xin Wu
- Ecotoxicology, Natural Resources and Environment Project, Khon Kaen University, Khon Kaen 40002, Thailand; (X.W.); (S.A.); (S.K.)
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650051, China
| | - Sunpetch Angkititrakul
- Ecotoxicology, Natural Resources and Environment Project, Khon Kaen University, Khon Kaen 40002, Thailand; (X.W.); (S.A.); (S.K.)
| | - Allen L. Richards
- Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA;
| | - Chaiwat Pulsrikarn
- National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand;
| | - Seri Khaengair
- Ecotoxicology, Natural Resources and Environment Project, Khon Kaen University, Khon Kaen 40002, Thailand; (X.W.); (S.A.); (S.K.)
| | - Amphone Keosengthong
- Department of Veterinary Medicine, Faculty of Agriculture, National University of Laos, Vientiane 7322, Lao People’s Democratic Republic;
| | - Supatcharee Siriwong
- Synchrotron Light Research Institute (Public Organization), Nakhon Ratchasima 30000, Thailand;
| | - Fanan Suksawat
- Ecotoxicology, Natural Resources and Environment Project, Khon Kaen University, Khon Kaen 40002, Thailand; (X.W.); (S.A.); (S.K.)
- Correspondence: ; Tel.: +66-62-915-9366
| |
Collapse
|
71
|
Sweileh WM, Moh’d Mansour A. Bibliometric analysis of global research output on antimicrobial resistance in the environment (2000-2019). Glob Health Res Policy 2020; 5:37. [PMID: 32775695 PMCID: PMC7398083 DOI: 10.1186/s41256-020-00165-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/06/2020] [Indexed: 01/04/2023] Open
Abstract
Background Antimicrobial resistance (AMR) is a global health threat that requires a "One Health" approach. Of the One Health triad, the environmental component is the most dynamic and most neglected. Therefore, the objective of the current study was to assess and analyze global research activity on AMR in the environment. Methods This was a bibliometric descriptive study of publications on AMR in the environment. Publications were retrieved using SciVerse Scopus for the study period from 2000 to 2019. The search query was developed using terms and phrases related to the topic. The retrieved publications were analyzed for specific bibliometric indicators including annual growth, citation analysis, key players, research output for each world regions, research themes, and occurrences of different drug classes of antimicrobials. Visualization maps including research collaboration were created using VOSviewer program. The Hirsch (h) index was used to assess scientific impact. Results There were 2611 research articles based on the implemented research query. The retrieved documents had an average of 22 citations per document and an h-index of 122. The annual number of publications showed a steep increase from 2011 to 2019. The major research themes in the field were (1) dissemination and abundance of antibiotic-resistant genes and (2) detection of bacterial strains or antibiotic residues in various environmental isolates. The bulk of the retrieved articles (n = 899; 34.4%) originated from the European region. China led with 598 (22.9%) documents. Four of the top 10 active institutions were in China. The top 10 active countries had relatively inadequate international research collaboration. The most commonly encountered antibiotic drug classes in the retrieved articles were penicillin/cephalosporin (n = 1152 occurrences). The most frequently encountered pathogen in the retrieved publications was E. coli (n = 666). The Science of the Total Environment journal was the most prolific journal with 139 (5.3%) publications. Conclusion Scientific literature on the AMR in the environment has witnessed a steep growth lately with a leading role of China and Chinese institutions. Data on AMR in the environment need to be collected from all world regions including the Eastern Mediterranean and African regions through research collaboration and funding of research in this field.
Collapse
Affiliation(s)
- Waleed M. Sweileh
- Department of Physiology, Pharmacology/Toxicology, College of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | | |
Collapse
|
72
|
Hartantyo SHP, Chau ML, Koh TH, Yap M, Yi T, Cao DYH, GutiÉrrez RA, Ng LC. Foodborne Klebsiella pneumoniae: Virulence Potential, Antibiotic Resistance, and Risks to Food Safety. J Food Prot 2020; 83:1096-1103. [PMID: 31928427 DOI: 10.4315/jfp-19-520] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/09/2020] [Indexed: 12/21/2022]
Abstract
ABSTRACT Gastrointestinal carriage of Klebsiella pneumoniae is a predisposing factor for liver abscess in several Asian countries. To determine whether hypervirulent K. pneumoniae in the gut may be transmitted through food, we screened a range of raw and ready-to-eat retail food by culture and recovered K. pneumoniae in 21% (147 of 698) of samples tested. Based on PCR, no K. pneumoniae isolates carried the rmpA gene linked to community-acquired pyogenic liver abscess, providing no evidence of a link between food and liver disease. However, phenotypic resistance to multiple antibiotic classes was seen through disk diffusion tests, and carriage of genetic elements (wcaG and capsule types K1, K2, and K54) associated with increased virulence (8%, 11 of 147) was observed by PCR. Multidrug-resistant isolates were from raw vegetables, chicken or pork liver, and a ready-to-eat poultry dish; one multidrug-resistant K. pneumoniae isolate from raw bean sprouts was resistant to a third-generation cephalosporin (ceftriaxone). Although K. pneumoniae may be present in food without causing harm, we found isolates belonging to the K1 capsular serotype coexisting with the wcaG gene, one also conferring multidrug resistance. K. pneumoniae that carry antibiotic resistance genes, regardless of pathogenicity, may increase the available genetic pool of resistance along the food chain. Hygienic food handling practices are necessary to lower risks of acquiring K. pneumoniae and other opportunistic pathogens. . HIGHLIGHTS
Collapse
Affiliation(s)
- Sri Harminda Pahm Hartantyo
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore.,National Centre for Food Science, Singapore Food Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore
| | - Man Ling Chau
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore.,National Centre for Food Science, Singapore Food Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore
| | - Tse Hsien Koh
- Department of Microbiology, Academia Diagnostics Tower, Singapore General Hospital, 20 College Road, Singapore 169856, Singapore
| | - Min Yap
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore
| | - Tseng Yi
- Food Science & Technology Programme, National University of Singapore, Block S14 level 5, 2 Science Drive 2 Lower Kent Ridge Road, Singapore 117542, Singapore
| | - Delphine Yan Hong Cao
- Department of Microbiology, Academia Diagnostics Tower, Singapore General Hospital, 20 College Road, Singapore 169856, Singapore
| | - Ramona Alikiiteaga GutiÉrrez
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore.,National Centre for Infectious Diseases, 16 Jalan Tan Tock Seng, Singapore 308442, Singapore
| | - Lee Ching Ng
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #04-03/04, Helios Block, Singapore 138667, Singapore.,School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| |
Collapse
|
73
|
Ben Rhouma R, Jouini A, Klibi A, Hamrouni S, Boubaker A, Kmiha S, Maaroufi A. Molecular characterisation of antimicrobial resistance and virulence genes in Escherichia coli strains isolated from diarrhoeic and healthy rabbits in Tunisia. WORLD RABBIT SCIENCE 2020. [DOI: 10.4995/wrs.2020.10879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The purpose of this study was to identify <em>Escherichia coli</em> isolates in diarrhoeic and healthy rabbits in Tunisia and characterise their virulence and antibiotic resistance genes. In the 2014-2015 period, 60 faecal samples from diarrhoeic and healthy rabbits were collected from different breeding farms in Tunisia. Susceptibility to 14 antimicrobial agents was tested by disc diffusion method and the mechanisms of gene resistance were evaluated using polymerase chain reaction and sequencing methods. Forty <em>E. coli</em> isolates were recovered in selective media. High frequency of resistance to tetracycline (95%) was detected, followed by different levels of resistance to sulphonamide (72.5%), streptomycin (62.5%), trimethoprim-sulfamethoxazole (60%), nalidixic acid (32.5%), ampicillin (37.5%) and ticarcillin (35%). <em>E. coli</em> strains were susceptible to cefotaxime, ceftazidime and imipenem. Different variants of bla<sub>TEM</sub>, <em>tet</em>, <em>sul</em> genes were detected in most of the strains resistant to ampicillin, tetracycline and sulphonamide, respectively. The presence of class 1 integron was studied in 29 sulphonamide-resistant <em>E. coli</em> strains from which 15 harboured class 1 integron with four different arrangements of gene cassettes, <em>dfrA17</em>+<em>aadA5</em> (n=9), <em>dfrA1</em> + <em>aadA1</em> (n=4), <em>dfrA12</em> + <em>addA2</em> (n=1), <em>dfrA12</em>+<em>orf</em>+<em>addA2</em> (n=1). The <em>qnrB</em> gene was detected in six strains out of 13 quinolone-resistant <em>E. coli</em> strains. Seventeen <em>E. coli</em> isolates from diarrhoeic rabbits harboured the enteropathogenic eae genes associated with different virulence genes tested (<em>fimA</em>, <em>cnf1</em>, <em>aer</em>), and affiliated to B2 (n=8) and D (n=9) phylogroups. Isolated <em>E. coli</em> strains from healthy rabbit were harbouring <em>fim A</em> and/or <em>cnf1</em> genes and affiliated to A and B1 phylogroups. This study showed that <em>E. coli</em> strains from the intestinal tract of rabbits are resistant to the widely prescribed antibiotics in medicine. Therefore, they constitute a reservoir of antimicrobial-resistant genes, which may play a significant role in the spread of antimicrobial resistance. In addition, the eae virulence gene seemed to be implicated in diarrhoea in breeder rabbits in Tunisia.
Collapse
|
74
|
AbdelRahman MAA, Roshdy H, Samir AH, Hamed EA. Antibiotic resistance and extended-spectrum β-lactamase in Escherichia coli isolates from imported 1-day-old chicks, ducklings, and turkey poults. Vet World 2020; 13:1037-1044. [PMID: 32801552 PMCID: PMC7396329 DOI: 10.14202/vetworld.2020.1037-1044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/16/2020] [Indexed: 11/16/2022] Open
Abstract
Aim: Antimicrobial resistance is a global health threat. This study investigated the prevalence of Escherichia coli in imported 1-day-old chicks, ducklings, and turkey poults. Materials and Methods: The liver, heart, lungs, and yolk sacs of 148 imported batches of 1-day-old flocks (chicks, 45; ducklings, 63; and turkey poults, 40) were bacteriologically examined for the presence of E. coli. Results: We isolated 38 E. coli strains from 13.5%, 6.7%, and 5.4% of imported batches of 1-day-old chicks, ducklings, and turkey poults, respectively. They were serotyped as O91, O125, O145, O78, O44, O36, O169, O124, O15, O26, and untyped in the imported chicks; O91, O119, O145, O15, O169, and untyped in the imported ducklings; and O78, O28, O29, O168, O125, O158, and O115 in the imported turkey poults. The E. coli isolates were investigated for antibiotic resistance against 16 antibiotics using the disk diffusion method and were found resistant to cefotaxime (60.5%), nalidixic acid (44.7%), tetracycline (44.7%), and trimethoprim-sulfamethoxazole (42.1%). The distribution of extended-spectrum β-lactamase (ESBL) and ampC β-lactamase genes was blaTEM (52.6%), blaSHV (28.9%), blaCTX-M (39.5%), blaOXA-1 (13.1%), and ampC (28.9%). Conclusion: Imported 1-day-old poultry flocks may be a potential source for the dissemination of antibiotic-resistant E. coli and the ESBL genes in poultry production.
Collapse
Affiliation(s)
- Mona A A AbdelRahman
- Department of Bacteriology, Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, P.O. Box 264, Dokki, Giza 12618, Egypt
| | - Heba Roshdy
- Department of Bacteriology, Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, P.O. Box 264, Dokki, Giza 12618, Egypt
| | - Abdelhafez H Samir
- Department of Biotechnology, Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, P.O. Box 264, Dokki, Giza 12618, Egypt
| | - Engy A Hamed
- Department of Bacteriology, Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Agriculture Research Center, P.O. Box 264, Dokki, Giza 12618, Egypt
| |
Collapse
|
75
|
Sarrazin S, Joosten P, Van Gompel L, Luiken REC, Mevius DJ, Wagenaar JA, Heederik DJJ, Dewulf J. Quantitative and qualitative analysis of antimicrobial usage patterns in 180 selected farrow-to-finish pig farms from nine European countries based on single batch and purchase data. J Antimicrob Chemother 2020; 74:807-816. [PMID: 30544242 DOI: 10.1093/jac/dky503] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 10/10/2018] [Accepted: 11/08/2018] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Farm-level quantification of antimicrobial usage (AMU) in pig farms. METHODS In a cross-sectional study, AMU data on group treatments administered to a single batch of fattening pigs from birth to slaughter (group treatment data) and antimicrobials purchased during 1 year (purchase data) were collected at 180 pig farms in nine European countries. AMU was quantified using treatment incidence (TI) based on defined (DDDvet) and used (UDDvet) daily doses and defined (DCDvet) and used (UCDvet) course doses. RESULTS The majority of antimicrobial group treatments were administered to weaners (69.5% of total TIDDDvet) followed by sucklers (22.5% of total TIDDDvet). AMU varied considerably between farms with a median TIDDDvet of 9.2 and 7.1 for a standardized rearing period of 200 days based on group treatment and purchase data, respectively. In general, UDDvet and UCDvet were higher than DDDvet and DCDvet, respectively, suggesting that either the defined doses were set too low or that group treatments were often dosed too high and/or administered for too long. Extended-spectrum penicillins (31.2%) and polymyxins (24.7%) were the active substances most often used in group treatments, with the majority administered through feed or water (82%). Higher AMU at a young age was associated with higher use in older pigs. CONCLUSIONS Collecting farm-level AMU data of good quality is challenging and results differ based on how data are collected (group treatment data versus purchase data) and reported (defined versus used daily and course doses).
Collapse
Affiliation(s)
- Steven Sarrazin
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Philip Joosten
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | - Liese Van Gompel
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 2, CM Utrecht, The Netherlands
| | - Roosmarijn E C Luiken
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 2, CM Utrecht, The Netherlands
| | - Dik J Mevius
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, CL Utrecht, The Netherlands.,Wageningen Bioveterinary Research, Houribweg 39, RA Lelystad, The Netherlands
| | - Jaap A Wagenaar
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, CL Utrecht, The Netherlands.,Wageningen Bioveterinary Research, Houribweg 39, RA Lelystad, The Netherlands
| | - Dick J J Heederik
- Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 2, CM Utrecht, The Netherlands
| | - Jeroen Dewulf
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, Belgium
| | | |
Collapse
|
76
|
Blanco G, Bautista LM. Avian Scavengers as Bioindicators of Antibiotic Resistance due to Livestock Farming Intensification. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17103620. [PMID: 32455739 PMCID: PMC7277293 DOI: 10.3390/ijerph17103620] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 11/25/2022]
Abstract
Industrial food animal production uses huge amounts of antibiotics worldwide. Livestock, their excreta used for manure and meat subproducts not intended for human consumption can all play important roles in the transmission of bacterial resistance to wildlife. Vultures and other scavengers can be directly exposed to active antibiotics ingested while feeding on livestock carcasses. This study evaluates whether bacterial resistance in the red kite (Milvus milvus) differs between two wintering areas selected based on patent differences in farming practices—particularly in the industrial production of food animals (primarily swine and poultry) vs. scarce and declining sheep herding. The results support the hypothesis that intensification in food animal production is associated with increased bacterial multidrug resistance in wildlife. Resistance was positively correlated with time elapsed since the beginning of the commercial application of each antibiotic in human and veterinary medicine, with clear differences depending on farming intensification between areas. Monitoring programs are encouraged to use red kites and other avian scavengers as valuable sentinels of contamination by antibiotics and clinically relevant resistant pathogens from livestock operations of variable intensities. Farms authorized for supplementary feeding of threatened scavengers should avoid supplying carcasses with active antibiotic residues to avoid bacterial resistance in scavenger wildlife.
Collapse
|
77
|
Kuznetsova MV, Gizatullina JS, Nesterova LY, Starčič Erjavec M. Escherichia coli Isolated from Cases of Colibacillosis in Russian Poultry Farms (Perm Krai): Sensitivity to Antibiotics and Bacteriocins. Microorganisms 2020; 8:microorganisms8050741. [PMID: 32429211 PMCID: PMC7285186 DOI: 10.3390/microorganisms8050741] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/10/2020] [Accepted: 05/13/2020] [Indexed: 11/16/2022] Open
Abstract
Escherichia coli strains isolated from case of colibacillosis in Russian poultry farms in the region of Perm Krai were analyzed for their sensitivity to main antibiotics and bacteriocins. Sensitivity profiles for 9 antibiotics and 20 bacteriocins were determined with the disc diffusion method and the overlay test, respectively. Further, with the PCR the presence of several bla and integron 1 genes was revealed and the phylogenetic group for each strain determined. Among the 28 studied E. coli strains 85.7% were resistant to at least three antibiotics, 53.6% to five or more drugs, and 10.7% to eight antibiotics. PCR revealed that the blaTEM gene was harbored by 71.4% of strains and the blaCTX-M gene by 53.6% of strains. The class 1 integrons were found in 28.6% of strains. All of the studied strains were insensitive to ten or more bacteriocins. More than 90% of the studied strains were insensitive to pore-forming colicins of group A and B colicins, while 60.7% were insensitive to colicins with DNase and RNase activity. All of the analyzed strains were insensitive to at least two of the tested microcins. Neither the antibiotic resistance profile nor the bacteriocin resistance profile correlated with phylogenetic group of the strains. Thus, the studied strains were shown to possess high levels of multiple resistance to antibiotics and insensitivity to bacteriocins.
Collapse
Affiliation(s)
- Marina V. Kuznetsova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva street 13, 614081 Perm, Russia; (M.V.K.); (J.S.G.); (L.Y.N.)
| | - Julia S. Gizatullina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva street 13, 614081 Perm, Russia; (M.V.K.); (J.S.G.); (L.Y.N.)
| | - Larisa Yu. Nesterova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Goleva street 13, 614081 Perm, Russia; (M.V.K.); (J.S.G.); (L.Y.N.)
| | - Marjanca Starčič Erjavec
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
- Correspondence: ; Tel.: +386-1-320-3402
| |
Collapse
|
78
|
Park Y, Oh J, Park S, Sum S, Song W, Chae J, Park H. Antimicrobial resistance and novel mutations detected in the gyrA and parC genes of Pseudomonas aeruginosa strains isolated from companion dogs. BMC Vet Res 2020; 16:111. [PMID: 32293442 PMCID: PMC7158017 DOI: 10.1186/s12917-020-02328-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 03/25/2020] [Indexed: 11/13/2022] Open
Abstract
Background Fluoroquinolone agents, such as enrofloxacin and marbofloxacin, are commonly used for pseudomonal infection in veterinary medicine. However, the rate of resistance to fluoroquinolones is rapidly increasing, according to multiple studies in various countries. Point mutations in the quinolone resistance-determining region (QRDR) are closely related to the increased fluoroquinolone resistance of Pseudomonas aeruginosa. The aim of this study was to investigate current antimicrobial susceptibility and fluoroquinolone resistance in P. aeruginosa strains isolated from dogs. The presence of point mutations in the QRDR was confirmed by gyrA and parC polymerase chain reaction and nucleotide sequencing analysis. Results A total of 84 nonduplicated P. aeruginosa strains were obtained from 228 healthy dogs (healthy group) and 260 dogs with clinical signs (infected group). Among these isolates, 38 strains from the healthy group were detected in several sample types, whereas 46 strains from the infected group were obtained mostly from dogs’ ears with otitis externa (41/260, 15.8%). All strains were resistant to nalidixic acid, while some were also resistant to enrofloxacin (23/84, 27.4%), marbofloxacin (17/84, 20.2%), levofloxacin (12/84, 14.3%), or ciprofloxacin (11/84, 13.1%). Enrofloxacin resistance was significantly higher in strains from the infected group than in those from the healthy group (p < 0.05). Among the 23 fluoroquinolone-resistant strains, 8 and 4 different mutations were detected in the gyrA and parC genes, respectively. Mutations in gyrA were significantly common in the infected group (p < 0.05). Hotspots for the gyrA and parC mutations were Thr83 (34.8%, 8/23) and Pro116 (91.3%, 21/23), respectively. Double and triple mutations were also found in 5 of the strains. Conclusion Novel mutations in the gyrA and parC genes were first found in P. aeruginosa isolated from companion dogs in South Korea. These findings suggest that it is important to encourage prudent use of fluoroquinolone antibiotics in canine pseudomonal infection treatment.
Collapse
Affiliation(s)
- Youjin Park
- Department of Veterinary Internal Medicine, Konkuk University College of Veterinary Medicine, Seoul, South Korea
| | - Jaeyoung Oh
- Department of Veterinary Internal Medicine, Konkuk University College of Veterinary Medicine, Seoul, South Korea
| | - Sowon Park
- Department of Veterinary Internal Medicine, Konkuk University College of Veterinary Medicine, Seoul, South Korea
| | - Samuth Sum
- Department of Veterinary Internal Medicine, Konkuk University College of Veterinary Medicine, Seoul, South Korea
| | - Wonkeun Song
- Department of Laboratory Medicine, Hallym University College of Medicine, Chuncheon, South Korea
| | - Jongchan Chae
- Biotechnology Division, Jeonbuk National University, Iksan, South Korea
| | - Heemyung Park
- Department of Veterinary Internal Medicine, Konkuk University College of Veterinary Medicine, Seoul, South Korea.
| |
Collapse
|
79
|
Anforderungen der Hygiene an abwasserführende Systeme in medizinischen Einrichtungen. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2020; 63:484-501. [DOI: 10.1007/s00103-020-03118-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
80
|
Molecular Epidemiology of Staphylococcus aureus Lineages in Wild Animals in Europe: A Review. Antibiotics (Basel) 2020; 9:antibiotics9030122. [PMID: 32183272 PMCID: PMC7148531 DOI: 10.3390/antibiotics9030122] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/07/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022] Open
Abstract
Staphylococcus aureus is an opportunist pathogen that is responsible for numerous types of infections. S. aureus is known for its ability to easily acquire antibiotic resistance determinants. Methicillin-resistant S. aureus (MRSA) is a leading cause of infections both in humans and animals and is usually associated with a multidrug-resistant profile. MRSA dissemination is increasing due to its capability of establishing new reservoirs and has been found in humans, animals and the environment. Despite the fact that the information on the incidence of MRSA in the environment and, in particular, in wild animals, is scarce, some studies have reported the presence of these strains among wildlife with no direct contact with antibiotics. This shows a possible transmission between species and, consequently, a public health concern. The aim of this review is to better understand the distribution, prevalence and molecular lineages of MRSA in European free-living animals.
Collapse
|
81
|
Nowakiewicz A, Zięba P, Gnat S, Trościańczyk A, Osińska M, Łagowski D, Kosior-Korzecka U, Puzio I. A significant number of multi-drug resistant Enterococcus faecalis in wildlife animals; long-term consequences and new or known reservoirs of resistance? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135830. [PMID: 31818604 DOI: 10.1016/j.scitotenv.2019.135830] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/13/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
As the last link in the food chain in a complex ecosystem covering at least three different environmental spheres, species of wildlife carnivorous mammals constitute a group accumulating potential pathogens and factors resulting from human activity, including the emergence of drug resistance. Therefore, the aim of this study was to evaluate the level and range of resistance in commensal E. faecalis isolated from wildlife carnivorous mammals and genetic relationships in terms of the source of these strains as well as resistance and virulence genes. Differentiation between strains was performed based on ADSRRS-fingerprinting method. The results showed that almost half of the tested animals (48%) were carriers of at least one multidrug resistant E. faecalis strain. Moreover, 44% of MDR-positive animals showed two or three strains differing in both the genotype and the resistance phenotype. A significant percentage of strains were resistant to high-level aminoglycosides (from 20% to even 57.5%). The resistance and virulence gene profiles showed a rich panel of genes closely related to isolates from nosocomial infection and from livestock animals. The presence of the same genotypes in different hosts reflects not only a possible transfer of genes between E. faecalis strains but also exchange of strains between animals. The obtained results reflect a very high level of contamination of animals that are not subjected to targeted antibiotic therapy, which may suggest the degree of pollution of the environment. Wildlife animals and their environment can be a link closing the circulation cycle of genes and even epidemiologically important strains; therefore, there is a high risk that this pool will never run out and will be maintained at a high level.
Collapse
Affiliation(s)
- Aneta Nowakiewicz
- University of Life Sciences, Faculty of Veterinary Medicine, Institute of Biological Bases of Animal Diseases, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland.
| | - Przemysław Zięba
- State Veterinary Laboratory, Droga Męczenników Majdanka 50, 20-325 Lublin, Poland
| | - Sebastian Gnat
- University of Life Sciences, Faculty of Veterinary Medicine, Institute of Biological Bases of Animal Diseases, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland
| | - Aleksandra Trościańczyk
- University of Life Sciences, Faculty of Veterinary Medicine, Institute of Biological Bases of Animal Diseases, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland
| | - Marcelina Osińska
- University of Life Sciences, Faculty of Veterinary Medicine, Institute of Biological Bases of Animal Diseases, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland
| | - Dominik Łagowski
- University of Life Sciences, Faculty of Veterinary Medicine, Institute of Biological Bases of Animal Diseases, Sub-Department of Veterinary Microbiology, Akademicka 12, 20-033 Lublin, Poland
| | - Urszula Kosior-Korzecka
- University of Life Sciences, Faculty of Veterinary Medicine, Department of Preclinical Veterinary Sciences, Sub-Department of Pathophysiology, Akademicka 12, 20-033 Lublin, Poland
| | - Iwona Puzio
- University of Life Sciences, Faculty of Veterinary Medicine, Department of Animal Physiology, Akademicka 12, 20-033 Lublin, Poland
| |
Collapse
|
82
|
Joosten P, Ceccarelli D, Odent E, Sarrazin S, Graveland H, Van Gompel L, Battisti A, Caprioli A, Franco A, Wagenaar JA, Mevius D, Dewulf J. Antimicrobial Usage and Resistance in Companion Animals: A Cross-Sectional Study in Three European Countries. Antibiotics (Basel) 2020; 9:E87. [PMID: 32079072 PMCID: PMC7175148 DOI: 10.3390/antibiotics9020087] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 11/17/2022] Open
Abstract
Companion animals have been described as potential reservoirs of antimicrobial resistance (AMR), however data remain scarce. Therefore, the objectives were to describe antimicrobial usage (AMU) in dogs and cats in three European countries (Belgium, Italy, and The Netherlands) and to investigate phenotypic AMR. A questionnaire and one fecal sample per animal (n = 303) were collected over one year and AMU was quantified using treatment incidence (TI). Phenotypic resistance profiles of 282 Escherichia coli isolates were determined. Nineteen percent of the animals received at least one antimicrobial treatment six months preceding sampling. On average, cats and dogs were treated with a standard daily dose of antimicrobials for 1.8 and 3.3 days over one year, respectively. The most frequently used antimicrobial was amoxicillin-clavulanate (27%). Broad-spectrum antimicrobials and critically important antimicrobials for human medicine represented 83% and 71% of the total number of treatments, respectively. Resistance of E. coli to at least one antimicrobial agent was found in 27% of the isolates. The most common resistance was to ampicillin (18%). Thirteen percent was identified as multidrug resistant isolates. No association between AMU and AMR was found in the investigated samples. The issue to address, regarding AMU in companion animal, lies within the quality of use, not the quantity. Especially from a One-Health perspective, companion animals might be a source of transmission of resistance genes and/or resistant bacteria to humans.
Collapse
Affiliation(s)
- Philip Joosten
- Veterinary Epidemiology Unit, Department of Obstetrics, Reproduction and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (E.O.); (S.S.); (J.D.)
| | - Daniela Ceccarelli
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Houtribweg 39, 8221 RA Lelystad, The Netherlands; (D.C.); (J.A.W.); (D.M.)
| | - Evelien Odent
- Veterinary Epidemiology Unit, Department of Obstetrics, Reproduction and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (E.O.); (S.S.); (J.D.)
| | - Steven Sarrazin
- Veterinary Epidemiology Unit, Department of Obstetrics, Reproduction and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (E.O.); (S.S.); (J.D.)
| | - Haitske Graveland
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands;
| | - Liese Van Gompel
- Institute for Risk Assessment Sciences, Utrecht University, Yalelaan 2, 3584 CM Utrecht, The Netherlands;
| | - Antonio Battisti
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Department of General Diagnostics, National Reference Laboratory for Antimicrobial Resistance, Via Appia Nuova, 1411, 00178 Rome, Italy; (A.B.); (A.F.)
| | - Andrea Caprioli
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Department of General Diagnostics, National Reference Laboratory for Antimicrobial Resistance, Via Appia Nuova, 1411, 00178 Rome, Italy; (A.B.); (A.F.)
| | - Alessia Franco
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Department of General Diagnostics, National Reference Laboratory for Antimicrobial Resistance, Via Appia Nuova, 1411, 00178 Rome, Italy; (A.B.); (A.F.)
| | - Jaap A. Wagenaar
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Houtribweg 39, 8221 RA Lelystad, The Netherlands; (D.C.); (J.A.W.); (D.M.)
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands;
| | - Dik Mevius
- Department of Bacteriology and Epidemiology, Wageningen Bioveterinary Research, Houtribweg 39, 8221 RA Lelystad, The Netherlands; (D.C.); (J.A.W.); (D.M.)
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands;
| | - Jeroen Dewulf
- Veterinary Epidemiology Unit, Department of Obstetrics, Reproduction and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium; (E.O.); (S.S.); (J.D.)
| |
Collapse
|
83
|
Carrique-Mas JJ, Choisy M, Van Cuong N, Thwaites G, Baker S. An estimation of total antimicrobial usage in humans and animals in Vietnam. Antimicrob Resist Infect Control 2020; 9:16. [PMID: 31956405 PMCID: PMC6961235 DOI: 10.1186/s13756-019-0671-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/23/2019] [Indexed: 01/07/2023] Open
Abstract
The accurate assessment of antimicrobial use (AMU) requires relating quantities of active ingredients (AAIs) with population denominators. These data can be used to prioritize potential sources of selective pressure for antimicrobial resistance and to establish reduction targets. Here, we estimated AMU in Vietnam (human population 93.4 M in 2015), and compared it with European Union (EU) data (population 511.5 M in 2014). We extrapolated AMU data on each key animal species and humans from different published sources to calculate overall AMU (in tonnes) in Vietnam. We then compared these data with published statistics on AMU in the European Union (EU). A total of 3838 t of antimicrobials were used in Vietnam, of which 2751 (71.7%) corresponded to animal use, and the remainder (1086 t; 28.3%) to human AMU. This equates to 261.7 mg and 247.3 mg per kg of human and animal biomass, compared with 122.0 mg and 151.5 mg in the EU. The greatest quantities of antimicrobials (in decreasing order) were used in pigs (41.7% of total use), humans (28.3%), aquaculture (21.9%) and chickens (4.8%). Combined AMU in other species accounted for < 1.5%. These results are approximate and highlight the need to conduct targeted surveys to improve country-level estimates of AMU.
Collapse
Affiliation(s)
- Juan J. Carrique-Mas
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University Clinical Research Unit, 764 Vo Van Kiet, Ward 1, District 5, Ho Chi Minh City, Vietnam
| | - Marc Choisy
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- MIVEGEC, IRD, CNRS, University of Montpellier, Montpellier, France
- LMI “Drug Resistance in South-east Asia” (DRISA), Hanoi, Vietnam
| | - Nguyen Van Cuong
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - Guy Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Centre for Tropical Medicine and Global Health, Nuffield Department of Clinical Medicine, Oxford University Clinical Research Unit, 764 Vo Van Kiet, Ward 1, District 5, Ho Chi Minh City, Vietnam
| | - Stephen Baker
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
- Cambridge Institute of Therapeutic Immunology & Infectious Disease, Department of Medicine, University of Cambridge, Cambridge, UK
| |
Collapse
|
84
|
Asaduzzaman M, Hossain MI, Saha SR, Islam MR, Ahmed N, Islam MA. Quantification of Airborne Resistant Organisms With Temporal and Spatial Diversity in Bangladesh: Protocol for a Cross-Sectional Study. JMIR Res Protoc 2019; 8:e14574. [PMID: 31855188 PMCID: PMC6940864 DOI: 10.2196/14574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 09/28/2019] [Accepted: 10/22/2019] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Antimicrobial resistance is a widespread, alarming issue in global health and a significant contributor to human death and illness, especially in low and middle-income countries like Bangladesh. Despite extensive work conducted in environmental settings, there is a scarcity of knowledge about the presence of resistant organisms in the air. OBJECTIVE The objective of this protocol is to quantify and characterize the airborne resistomes in Bangladesh, which will be a guide to identify high-risk environments for multidrug-resistant pathogens with their spatiotemporal diversity. METHODS This is a cross-sectional study with an environmental, systematic, and grid sampling strategy focused on collecting air samples from different outdoor environments during the dry and wet seasons. The four environmental compartments are the frequent human exposure sites in both urban and rural settings: urban residential areas (n=20), live bird markets (n=20), rural households (n=20), and poultry farms (n=20). We obtained air samples from 80 locations in two seasons by using an active microbial air sampler. From each location, five air samples were collected in different media to yield the total bacterial count of 3rd generation cephalosporin (3GC) resistant Enterobacteriaceae, carbapenem-resistant Enterobacteriaceae, vancomycin-resistant Enterococci and methicillin-resistant Staphylococcus aureus. RESULTS The study started in January 2018, and the collection of air samples was completed in November 2018. We have received 800 air samples from 80 study locations in both dry and wet seasons. Currently, the laboratory analysis is ongoing, and we expect to receive the preliminary results by October 2019. We will publish the complete result as soon as we clean and analyze the data and draft the manuscript. CONCLUSIONS The existence of resistant bacteria in the air like those producing extended-spectrum beta-lactamases, carbapenem-resistant Enterobacteriaceae, vancomycin-resistant Enterococci, and methicillin-resistant Staphylococcus aureus will justify our hypothesis that the outdoor environment (air) in Bangladesh acts as a reservoir for bacteria that carry genes conferring resistance to antibiotics. To our knowledge, this is the first study to explore the presence of superbugs in the air in commonly exposed areas in Bangladesh. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/14574.
Collapse
Affiliation(s)
- Muhammad Asaduzzaman
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
- School of Public Health, University of California, Berkeley, CA, United States
- Centre for Global Health, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Muhammed Iqbal Hossain
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Sumita Rani Saha
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Md Rayhanul Islam
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
| | - Niyaz Ahmed
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
- Pathogen Biology Laboratory, Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Mohammad Aminul Islam
- Laboratory Sciences and Services Division, International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh
- Paul G Allen School for Global Animal Health, College of Veterinary Medicine, Washington State University, Pullman, WA, United States
| |
Collapse
|
85
|
MUSHTAQ MOHSINA, AGRAWAL RAJESH, BHAT MOHDALTAF, SINGH RAJIV, PANDE NISHI. Antibiotic resistance gene typing in Staphylococcus aureus isolated from bovine mastitis. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i11.95857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The study was conducted to determine the antimicrobial resistance pattern of Staphylococcus aureus isolates from bovine mastitis. Milk samples (160) collected aseptically from mastitis affected cows at organized dairy farms in and around Jammu were subjected to microbial culture for the isolation and identification of S. aureus using Baird Parker Agar. Presumptive S. aureus isolates (52) were subjected to molecular confirmation through identification of species specific (nuc) gene. In vitro antimicrobial resistance pattern of the isolates against a panel of 13 selected antibiotics, using disc diffusion technique, revealed that the isolates were mostly sensitive to enrofloxacin followed by vancomycin, ciprofloxacin, tetracycline, chloramphenicol, streptomycin, ceftriaxone, erythromycin and gentamicin whereas maximum resistance was shown towards penicillin G followed by ampicillin, amoxyclav, methicillin, gentamicin, streptomycin, erythromycin, tetracycline and ceftriaxone. Methicillin resistance (MRSA) was recorded in 32.69% S. aureus isolates out of which 41.17% isolates carried mecA gene. Among the gentamicin and tetracycline resistant S. aureus isolates, 61.53% isolates carried aacA-aphD gene and 80% isolates carried tetK gene, respectively. Multidrug resistance (MDR) was observed in 71.15% S. aureus and 82.35% MRSA isolates. In conclusion, S. aureus showed maximum sensitivity to enrofloxacin thereby suggesting the use of this drug for effective treatment of mastitis but the development of resistance against this drug cannot be ruled out in the near future, hence, there is a need for accurate diagnosis of mastitis along with the correct selection of antibiotics to prevent bovine mastitis.
Collapse
|
86
|
Yamashita MM, Ferrarezi JV, Pereira GDV, Bandeira G, Côrrea da Silva B, Pereira SA, Martins ML, Pedreira Mouriño JL. Autochthonous vs allochthonous probiotic strains to Rhamdia quelen. Microb Pathog 2019; 139:103897. [PMID: 31786258 DOI: 10.1016/j.micpath.2019.103897] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 12/24/2022]
Abstract
The aim of this study was to obtain an autochthonous probiotic candidate strain from the silver catfish (Rhamdia quelen) intestinal tract, comparing its in vivo performance with an allochthonous probiotic isolated from another fish, Nile tilapia (Oreochromis niloticus), in a growth performance assay. The study was divided in two parts: in vitro and in vivo assay followed by challenge with A. hydrophila. In the in vitro assay, the species-specific isolated strain Lactococcus lactis presented characteristics such as: absence of hemolysis, antagonism to bacterial pathogens isolated from freshwater fish, and considerable speed of duplication. In the in vivo trial, both fish supplemented with autochthonous or allochthonous strains presented an increase the final concentration of lactic acid bacteria in the intestinal tract of the fish after 60 days of dietary supplementation reaching concentrations of 1 × 107 CFU g-1 and 4 × 107 UFC.g-1, respectively. In addition, the autochthonous strain increased the mean corpuscular hemoglobin (MCH) of the treated animals, but no significant differences were observed in the other hemato-immunological and zootechnical parameters between treatments. After challenge with Aeromonas hydrophila, only animals that received autochthonous probiotic supplementation showed an increase in the serum total immunoglobulin concentration, but not enough to observe a significant difference in the survival rate between the treatments. Dietary supplementation of the probiotic allochthonous strain did not demonstrate any effects superior to those of the isolated autochthonous strain. Although the autochthonous strain did not present significant improvements in the other parameters evaluated in this study, it was able to inhibit bacterial pathogens in vitro, to increase the final concentration of LAB's and the amount of immunoglobulin after experimental challenge, demonstrating probiotic potential. This study demonstrated for the first time the isolation and in vivo use of an autochthonous probiotic strain isolated from silver catfish, as well as its comparative evaluation with the performance of allochthonous probiotic.
Collapse
Affiliation(s)
- Marcela Maia Yamashita
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, 88040-900, Florianópolis, SC, Brazil.
| | - José Victor Ferrarezi
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, 88040-900, Florianópolis, SC, Brazil
| | - Gabriella do Vale Pereira
- Aquatic Animal Nutrition and Health Research Group, School of Biological and Marine Sciences, Plymouth University, Plymouth, UK
| | - Guerino Bandeira
- Department of Physiology and Pharmacology, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Bruno Côrrea da Silva
- EPAGRI - Company of Agricultural Research and Rural Extension of Santa Catarina, Rod. Antônio Hell, 6800, 88318-112, Itajaí, SC, Brazil
| | - Scheila Anelise Pereira
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, 88040-900, Florianópolis, SC, Brazil
| | - Maurício Laterça Martins
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, 88040-900, Florianópolis, SC, Brazil
| | - José Luiz Pedreira Mouriño
- AQUOS - Aquatic Organisms Health Laboratory, Aquaculture Department, Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, 88040-900, Florianópolis, SC, Brazil
| |
Collapse
|
87
|
Ben Said L, Jouini A, Fliss I, Torres C, Klibi N. Antimicrobial resistance genes and virulence gene encoding intimin in Escherichia coli and Enterococcus isolated from wild rabbits ( Oryctolagus cuniculus) in Tunisia. Acta Vet Hung 2019; 67:477-488. [PMID: 31842593 DOI: 10.1556/004.2019.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The spread of antimicrobial-resistant bacteria in wildlife must be viewed as a major concern with serious implications for human and animal health. Escherichia coli and enterococcal isolates were recovered from faecal samples of 49 wild rabbits (Oryctolagus cuniculus) on specific media and were characterised using biochemical and molecular tests. For all isolates, antimicrobial susceptibility testing was performed, and resistance genes were detected by PCR. Molecular typing of isolates was carried out by pulsed-field gel-electrophoresis, and E. coli strains were also tested for the presence of intimin (eae) gene characteristic of rabbit enteropathogenic E. coli. A total of 34 E. coli and 36 enterococci [E. hirae (52.8%) and E. faecalis (47.2%)] were obtained. For E. coli, resistance to tetracycline (94%), streptomycin (62%), ciprofloxacin (47%), trimethoprim-sulphamethoxazole (35%) and chloramphenicol (6%) was observed. Resistance to third-generation cephalosporins was detected in one E. coli strain that carried the blaCMY-2 and blaTEM-1 genes. Class 1 integrons were detected in eight isolates. For enterococci, resistance to tetracycline (63.9%), erythromycin (30.5%), streptomycin (18.2%), and chloramphenicol (5.5%) was detected. The tet(M)+tet(L), erm(B) and ant (6)-Ia genes were identified in thirteen, seven and three resistant Enterococcus strains, respectively. Molecular typing showed a high diversity among our strains. Wild rabbits could represent a reservoir of E. coli, and enterococci carrying antimicrobial resistance genes and E. coli additionally carrying the eae gene of enteropathogenic pathotypes could both contaminate the environment. our finding seems to represent the first report of eae-positive E. coli in wild rabbits.
Collapse
Affiliation(s)
- Laila Ben Said
- 1Institute of Nutrition and Functional Foods, Université Laval, Quebec City, G1V 0A6 Quebec, Canada
| | - Ahlem Jouini
- 2Laboratory of Epidemiology and Veterinary Microbiologie, Pasteur Institute of Tunis, Tunisia
| | - Ismail Fliss
- 1Institute of Nutrition and Functional Foods, Université Laval, Quebec City, G1V 0A6 Quebec, Canada
| | - Carmen Torres
- 3Area de Bioquímica y Biología Molecular, Universidad de La Rioja, Logroño, Spain
| | - Naouel Klibi
- 4Laboratoire des Microorganismes et Biomolécules actives, Faculté de Sciences de Tunis, Université de Tunis El Manar, Tunis, Tunisie
| |
Collapse
|
88
|
Baindara P, Nallabelli N, Korpole S. Whole genome mining reveals a diverse repertoire of lanthionine synthetases and lanthipeptides among the genus
Paenibacillus. J Appl Microbiol 2019; 128:473-490. [DOI: 10.1111/jam.14495] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/16/2022]
Affiliation(s)
- P Baindara
- CSIR‐Institute of Microbial Technology Microbial Type Culture Collection and Gene Bank Chandigarh India
| | - N Nallabelli
- CSIR‐Institute of Microbial Technology Microbial Type Culture Collection and Gene Bank Chandigarh India
| | - S Korpole
- CSIR‐Institute of Microbial Technology Microbial Type Culture Collection and Gene Bank Chandigarh India
| |
Collapse
|
89
|
Antimicrobial Resistance Factors of Extended-Spectrum Beta-Lactamases Producing Escherichia coli and Klebsiella pneumoniae Isolated from Cattle Farms and Raw Beef in North-West Province, South Africa. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4318306. [PMID: 31915693 PMCID: PMC6935440 DOI: 10.1155/2019/4318306] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/08/2019] [Indexed: 11/18/2022]
Abstract
Background Extended spectrum beta-lactamases (ESBLs) producing Enterobacteriaceae cause severe infections in humans which leads to complicated diseases. There is increasing evidence that cattle contribute to the development and spread of multidrug resistant pathogens and this raises public health concern. Despite this, data on the concurrence of ESBL producing pathogens in cattle, especially in the North-West province are rare. Therefore, the aim of the present study was to isolate, identify and characterise ESBL producing E. coli and K. pneumoniae species from cattle faeces and raw beef samples. Results A total of 151 samples comprising 55 faeces samples and 96 raw beef samples were collected and 259 nonreplicative potential isolates of Enterobacteriaceae were obtained. One hundred and ninety-six isolates were confirmed as E. coli (114; 44%) and K. pneumoniae (82; 32%) species through amplification of uspA and uidA and ntrA gene fragments, respectively. Antimicrobial susceptibility test revealed that large proportions (66.7-100%) of the isolates were resistant to Amoxicillin, Aztreonam, Ceftazidime, Cefotaxime, and Piperacillin and were multidrug resistant isolates. Cluster analysis of antibiotic inhibition zone diameter data revealed close similarities between isolates from different sources or species thus suggested a link in antibiotic exposures. The isolates showing phenotypic resistance against ESBL antimicrobial susceptibility tests were screened for the presence of ESBL gene determinants. It was observed that 53.1% of the isolates harboured ESBL gene determinants. The blaTEM, blaSHV and blaCTX-M genes were detected in E. coli isolates (85.5%, 69.6%, and 58%, respectively) while blaCTX-M and blaOXA were detected in K. pneumoniae (40% and 42.9%, respectively). All the genetically confirmed ESBL producing E. coli and K. pneumoniae isolates were subjected to Enterobacterial Repetitive Intergenic Consensus (ERIC) PCR analysis. Fingerprinting data revealed great similarities between isolates from different areas and sources which indicates cross-contamination between cattle and beef. Conclusion This study revealed that cattle and its associated food products, beef in particular, harbour ESBL producing pathogens. And this warrants a need to enforce hygiene measures and to develop other mitigation strategies to minimise the spread of antibiotic resistant pathogens from animals to human.
Collapse
|
90
|
Casaux ML, Caffarena RD, Schild CO, Giannitti F, Riet-Correa F, Fraga M. Antibiotic resistance in Salmonella enterica isolated from dairy calves in Uruguay. Braz J Microbiol 2019; 50:1139-1144. [PMID: 31606855 DOI: 10.1007/s42770-019-00151-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 09/04/2019] [Indexed: 10/25/2022] Open
Abstract
Salmonella enterica is an important animal and human pathogen that can cause enteritis and septicaemia in calves. Generally, antibiotics are prescribed for the treatment of salmonellosis in dairy calves. Here, we report the isolation of antibiotic resistant S. enterica serotypes from calves, including multidrug-resistant isolates. A total of 544 faecal samples from live healthy and diarrheic dairy calves from 29 commercial dairy farms and organ samples from 19 deceased calves that succumbed to salmonellosis in 12 commercial dairy farms in Uruguay were processed for selective S. enterica culture. In total, 41 isolates were serotyped, and susceptibility to 14 antibiotics, from 9 classes of compounds, was evaluated by disk-diffusion test. The minimum inhibitory concentration (MIC) was determined by microdilution. Salmonella Typhimurium was the most frequent serotype, followed by S. Dublin and S. Anatum. Whether determined by diffusion assay or microdilution, resistance to tetracycline, streptomycin and ampicillin were the most frequently pattern found. Based on MIC, 5 isolates were resistant to at least one antibiotic, 21 were resistant to 2 antibiotics, and 14 were multidrug-resistant (resistant to at least one antibiotic in 3 different categories of antibiotics). Eleven different resistance patterns were found. Multidrug resistance in S. enterica is a concern for animal and public health not only because of its zoonotic potential but also due to the possibility of transfer resistance determinants to other bacterial genera. This represents the first report of the antibiotic resistance in S. enterica in dairy farms in Uruguay.
Collapse
Affiliation(s)
- M L Casaux
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay
| | - R D Caffarena
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay.,Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - C O Schild
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay.,Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay
| | - F Giannitti
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay
| | - Franklin Riet-Correa
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay
| | - Martín Fraga
- Instituto Nacional de Investigación Agropecuaria (INIA), Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Ruta 50, km 11.5, 70006, Colonia, Uruguay.
| |
Collapse
|
91
|
Karmacharya D, Manandhar P, Manandhar S, Sherchan AM, Sharma AN, Joshi J, Bista M, Bajracharya S, Awasthi NP, Sharma N, Llewellyn B, Waits LP, Thapa K, Kelly MJ, Vuyisich M, Starkenburg SR, Hero JM, Hughes J, Wultsch C, Bertola L, Fountain-Jones NM, Sinha AK. Gut microbiota and their putative metabolic functions in fragmented Bengal tiger population of Nepal. PLoS One 2019; 14:e0221868. [PMID: 31465520 PMCID: PMC6715213 DOI: 10.1371/journal.pone.0221868] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 08/17/2019] [Indexed: 02/01/2023] Open
Abstract
Bengal tigers (Panthera tigris tigris) serve a pivotal role as an apex predator in forest ecosystems. To increase our knowledge on factors impacting the viability and health of this endangered species, we studied the gut microbiota in 32 individual Bengal tigers from three geographically separated areas (Chitwan National Park (CNP), Bardia National Park (BNP) and Suklaphanta Wildlife Reserve (SWR)) in Nepal, using noninvasive genetic sampling methods. Gut microbiota influence the immune system, impact various physiological functions, and modulates metabolic reactions, that ultimately impact the host health, behavior and development. Across the tiger populations in Nepal, we found significant differences in the composition of microbial communities based on their geographic locations. Specifically, we detected significant differences between CNP and the other two protected areas (CNP vs BNP: pseudo t = 1.944, P = 0.006; CNP vs SWR: pseudo t = 1.9942, P = 0.0071), but no differences between BNP and SWR. This mirrors what has been found for tiger gene flow in the same populations, suggesting gut microbiota composition and host gene flow may be linked. Furthermore, predictive metagenome functional content analysis (PICRUSt) revealed a higher functional enrichment and diversity for significant gut microbiota in the Chitwan tiger population and the lowest enrichment and diversity in Suklaphanta. The CNP tiger population contained higher proportions of microbiota that are associated with predicted functions relevant for metabolism of amino acid, lipid, xenobiotics biodegradation, terpenoides and polyketides than the SWR population. We conclude the tiger population structure, gut microbiota profile and associated functional metabolic categories are correlated, with geographically most separated CNP and SWR tiger population having the most distinct and different host genotype and microbiota profiles. Our work dramatically expands the understanding of tiger microbiota in wild populations and provides a valuable case study on how to investigate genetic diversity at different hierarchical levels, including hosts as well as their microbial communities.
Collapse
Affiliation(s)
- Dibesh Karmacharya
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
- School of Environment, Griffith University, Brisbane, Queensland, Australia
| | | | | | | | | | - Jyoti Joshi
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | - Manisha Bista
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| | | | | | - Netra Sharma
- Environment Team, U.S. Agency for International Development, Kathmandu, Nepal
| | - Bronwyn Llewellyn
- Environment Team, U.S. Agency for International Development, Kathmandu, Nepal
| | - Lisette P. Waits
- Department of Fish and Wildlife Sciences, University of Idaho, Moscow, Idaho, United States of America
| | - Kanchan Thapa
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Marcella J. Kelly
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, Virginia, United States of America
| | - Momchilo Vuyisich
- Applied Genomics, Los Alamos National Lab, Los Alamos, New Mexico, United States of America
| | - Shawn R. Starkenburg
- Applied Genomics, Los Alamos National Lab, Los Alamos, New Mexico, United States of America
| | - Jean-Marc Hero
- School of Science & Education, University of the Sunshine Coast, Sunshine Coast, Queensland, Australia
| | - Jane Hughes
- School of Environment, Griffith University, Brisbane, Queensland, Australia
| | - Claudia Wultsch
- Sackler Institute for Comparative Genomics, American Museum of Natural History, New York, United States of America
- Bioinformatics and Computational Genomics Laboratory, Hunter College, City University of New York, New York, United States of America
| | - Laura Bertola
- Department of Biology, City College of New York, New York, United States of America
- Institute of Environmental Sciences, Leiden University, Leiden, The Netherlands
| | - Nicholas M. Fountain-Jones
- Department of Veterinary Population Medicine, University of Minnesota, Minneapolis, Minnesota, United States of America
| | - Amit K. Sinha
- Center for Molecular Dynamics Nepal, Kathmandu, Nepal
| |
Collapse
|
92
|
Hashempour-Baltork F, Hosseini H, Shojaee-Aliabadi S, Torbati M, Alizadeh AM, Alizadeh M. Drug Resistance and the Prevention Strategies in Food Borne Bacteria: An Update Review. Adv Pharm Bull 2019; 9:335-347. [PMID: 31592430 PMCID: PMC6773942 DOI: 10.15171/apb.2019.041] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Revised: 05/13/2019] [Accepted: 05/13/2019] [Indexed: 01/10/2023] Open
Abstract
Antibiotic therapy is among the most important treatments against infectious diseases and has tremendously improved effects on public health. Nowadays, development in using this treatment has led us to the emergence and enhancement of drug-resistant pathogens which can result in some problems including treatment failure, increased mortality as well as treatment costs, reduced infection control efficiency, and spread of resistant pathogens from hospital to community. Therefore, many researches have tried to find new alternative approaches to control and prevent this problem. This study, has been revealed some possible and effective approaches such as using farming practice, natural antibiotics, nano-antibiotics, lactic acid bacteria, bacteriocin, cyclopeptid, bacteriophage, synthetic biology and predatory bacteria as alternatives for traditional antibiotics to prevent or reduce the emergence of drug resistant bacteria.
Collapse
Affiliation(s)
- Fataneh Hashempour-Baltork
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hedayat Hosseini
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saeedeh Shojaee-Aliabadi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadali Torbati
- Department of Food Science and Technology, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Adel Mirza Alizadeh
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Matin Alizadeh
- Department of Clinical Sciences (Surgery), Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
93
|
Echtermann T, Muentener C, Sidler X, Kümmerlen D. Antimicrobial Drug Consumption on Swiss Pig Farms: A Comparison of Swiss and European Defined Daily and Course Doses in the Field. Front Vet Sci 2019; 6:240. [PMID: 31380403 PMCID: PMC6657740 DOI: 10.3389/fvets.2019.00240] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/02/2019] [Indexed: 11/13/2022] Open
Abstract
Defined Daily Doses (DDD) and Defined Course Doses (DCD) have been established in both human and veterinary medicine in order to standardize the measurement of treatments in a population. In 2016 the European Medicines Agency published average defined daily dose (DDDvet) and defined course dose (DCDvet) values for antimicrobial agents used in livestock production. Similarly, national defined doses (DDDch and DCDch) for the pig sector in Switzerland have recently been determined. The aim of this study was to compare the outcome of calculating antimicrobial consumption based on either DDDvet/DCDvet or DDDch/DCDch. Data from 227 Swiss pig farms describing antimicrobial use in 2015 was collected. The numbers of treatment days and treatments were calculated using DDDvet/DCDvet and DDDch/DCDch respectively, for each farm in total and for different antimicrobial classes. Associations between calculated numbers of DDDvet/DCDvet and DDDch/DCDch on farm level were investigated. In addition, differences concerning antimicrobial use were investigated between different production types of farms (piglet-producer, finishing farm or farrow-to-finishing farm). Using DDDch/DCDch values we calculated 1,805,494 treatment days and 433,678 treatments compared to 1,456,771 treatment days (19% ratio) and 303,913 treatments (30% ratio) based on DDDvet/DCDvet. Penicillins (21.4/26.6%), polypeptides (18.6/27.6%) and fluoroquinolones (9.5/8.8%) were the most frequently used classes of antimicrobials based on calculation using both DDDch and DDDvet. Similar findings were observed for complete treatments (DCDch/vet) (penicillins: 52.8/39.6%; polypeptides: 7.8/14.2%; fluoroquinolones: 13.2/12.9%). The number of treatment days or treatments per farm was higher for piglet-producers and farrow-to-finishing farms compared to finisher farms regardless of whether Swiss or European DDD or DCD values were used for the calculation (each P < 0.001). Similar results for antimicrobial use (AMU) obtained at farm level were observed when calculated either by Swiss or European definitions. Nevertheless, marked differences could be observed in the assessment of the use of specific antimicrobial classes in the field based on DDDvet/DCDvet compared to DDDch/DCDch.
Collapse
Affiliation(s)
- Thomas Echtermann
- Division of Swine Medicine, Department for Farm Animals, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Cedric Muentener
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Xaver Sidler
- Division of Swine Medicine, Department for Farm Animals, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Dolf Kümmerlen
- Institute of Veterinary Pharmacology and Toxicology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| |
Collapse
|
94
|
Choisy M, Van Cuong N, Bao TD, Kiet BT, Hien BV, Thu HV, Chansiripornchai N, Setyawan E, Thwaites G, Rushton J, Carrique-Mas J. Assessing antimicrobial misuse in small-scale chicken farms in Vietnam from an observational study. BMC Vet Res 2019; 15:206. [PMID: 31221155 PMCID: PMC6585117 DOI: 10.1186/s12917-019-1947-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 06/04/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Antimicrobials are used by poultry farmers in Vietnam as a tool to treat and prevent infectious diseases. We aimed to determine the fraction of disease episodes likely to remain untreated due to the administration of antimicrobials on non-susceptible pathogens in chicken flocks in the Mekong Delta of Vietnam. Weekly data on antimicrobial use and clinical signs were collected from 88 randomly chosen chicken flocks over 124 full production cycles (i.e. time between restocking flocks with day-old chicks and sale for slaughter). A naïve Bayes model was trained to infer the probabilities of disease episodes having been caused by each of 24 pathogens, given the observed clinical sign profile, and expert knowledge on their relative incidence. RESULTS A total of 224 disease episodes were observed, of which 44.8% were attributed to viruses (95% CI 31.1-58.4%), 54.6% (CI 40.4-68.7%) to bacteria, and 0.6% (CI 0-1.7%) to a protozoan (Eimeria spp.). Antimicrobials were more frequently administered on weeks with disease than on weeks without disease (43.3% vs. 17.8%; p < 0.001). A median of 2 [IQR 0-4] antimicrobials were used by episode. The choice of specific antimicrobials was independent on whether the flocks had disease clinical signs or not. Antimicrobials were not used in 30.3% of the episodes. The overall probability that episodes were not effectively treated was 74.2, and 53.7% when discounting cases where the inferred aetiology is viral. Considering only episodes where antimicrobials were given, these probabilities were 57.4 and 23.8% respectively. CONCLUSIONS This study highlights untargeted use of antimicrobials on small-scale Vietnamese chicken farms, as well as the limitations of antimicrobials as effective tools to control infectious diseases.
Collapse
Affiliation(s)
- Marc Choisy
- Oxford University Clinical Research Unit, Hanoi, Vietnam
- MIVEGEC, IRD, CNRS, University of Montpellier, Montpellier, France
- Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh city, Vietnam
- LMI “Drug Resistance in South-east Asia” (DRISA), Hanoi, Vietnam
| | | | - Truong Dinh Bao
- Oxford University Clinical Research Unit, Hanoi, Vietnam
- Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh city, Vietnam
| | - Bach Tuan Kiet
- Sub-Department of Animal Health and Production (SDAHP), Cao Lanh, Dong Thap Vietnam
| | - Bo Ve Hien
- Sub-Department of Animal Health and Production (SDAHP), Cao Lanh, Dong Thap Vietnam
| | | | | | - Erry Setyawan
- Food and Agriculture Organization of the United Nations, Jakarta, Indonesia
| | - Guy Thwaites
- Oxford University Clinical Research Unit, Hanoi, Vietnam
- Nuffield, Department of Medicine, Centre for Tropical Medicine and Global Health, Oxford University, Oxford, UK
| | - Jonathan Rushton
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
| | - Juan Carrique-Mas
- Oxford University Clinical Research Unit, Hanoi, Vietnam
- Nuffield, Department of Medicine, Centre for Tropical Medicine and Global Health, Oxford University, Oxford, UK
| |
Collapse
|
95
|
Van Hamelsveld S, Adewale ME, Kurenbach B, Godsoe W, Harding JS, Remus-Emsermann MNP, Heinemann JA. Prevalence of antibiotic-resistant Escherichia coli isolated from urban and agricultural streams in Canterbury, New Zealand. FEMS Microbiol Lett 2019; 366:5488434. [DOI: 10.1093/femsle/fnz104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 05/10/2019] [Indexed: 12/11/2022] Open
Abstract
Abstract
Baseline studies are needed to identify environmental reservoirs of non-pathogenic but associating microbiota or pathogenic bacteria that are resistant to antibiotics and to inform safe use of freshwater ecosystems in urban and agricultural settings. Mesophilic bacteria and Escherichia coli were quantified and isolated from water and sediments of two rivers, one in an urban and one in an agricultural area near Christchurch, New Zealand. Resistance of E. coli to one or more of nine different antibiotics was determined. Additionally, selected strains were tested for conjugative transfer of resistances. Despite having similar concentrations of mesophilic bacteria and E. coli, the rivers differed in numbers of antibiotic-resistant E. coli isolates. Fully antibiotic-susceptible and -resistant strains coexist in the two freshwater ecosystems. This study was the first phase of antibiotic resistance profiling in an urban setting and an intensifying dairy agroecosystem. Antibiotic-resistant E. coli may pose different ingestion and contact risks than do susceptible E. coli. This difference cannot be seen in population counts alone. This is an important finding for human health assessments of freshwater systems, particularly where recreational uses occur downstream.
Collapse
Affiliation(s)
- Sophie Van Hamelsveld
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Muyiwa E Adewale
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Brigitta Kurenbach
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
- Centre for Integrated Research in Biosafety and Centre for Integrative Ecology, University of Canterbury, Christchurch 8140, New Zealand
| | - William Godsoe
- Bio-Protection Centre, Lincoln University, Lincoln 7647, New Zealand
| | - Jon S Harding
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
| | - Mitja N P Remus-Emsermann
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
- Biomolecular Interaction Centre, University of Canterbury, Christchurch 8140, New Zealand
| | - Jack A Heinemann
- School of Biological Sciences, University of Canterbury, Christchurch 8140, New Zealand
- Centre for Integrated Research in Biosafety and Centre for Integrative Ecology, University of Canterbury, Christchurch 8140, New Zealand
| |
Collapse
|
96
|
Handrova L, Kmet V. Antibiotic resistance and virulence factors of Escherichia coli from eagles and goshawks. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:605-614. [PMID: 31046564 DOI: 10.1080/03601234.2019.1608103] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
One of the major global problems in medicine is microbial resistance to antibiotics (antimicrobial resistance) and this has become an increasingly frequent research topic. This study focuses on antimicrobial resistance, phylogenetic and genetic characterization of Escherichia coli from wild birds: ten isolates from eagles (Aquila chrysaetos), nine from goshawks (Accipiter gentilis) and 24 from broilers in the Slovak Republic. Twenty-two strains with presence of int1 gene were selected and examined for the presence or absence of transposon gene (tn3), genes of antibiotic resistance and virulence factors. We detected sequence type (ST) in eagles ST 442 with genes iss, papC, iutA, cvaC, tsh, fyuA, iroN, kps, feoB, sitA, irp2, ireA for virulence factors and tetA, sul1, sul2, dfrA, aadA for antibiotic resistance; in goshawks ST 1011 with iss, papC, fyuA, iroN, feoB, sitA and qnrS1, tetA, sul1, sul2, dfrA, aadA, respectively. These ST types have been found in humans too and should be evaluated further for possible zoonotic potential and transfer of resistance genes from the environment.
Collapse
Affiliation(s)
- Livia Handrova
- a Centre of biosciences of the SAS , Institute of Animal Physiology , Kosice , Slovak Republic
| | - Vladimir Kmet
- a Centre of biosciences of the SAS , Institute of Animal Physiology , Kosice , Slovak Republic
| |
Collapse
|
97
|
Potential dietary feed additives with antibacterial effects and their impact on performance of weaned piglets: A meta-analysis. Vet J 2019; 249:24-32. [PMID: 31239161 DOI: 10.1016/j.tvjl.2019.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 04/01/2019] [Accepted: 04/29/2019] [Indexed: 02/07/2023]
Abstract
This meta-analysis evaluated the use of potential dietary feed additives (pDFA) with antibacterial effects and their impact on the perfomance of weaned piglets. Twenty-three peer-reviewed in vivo studies, comprising 50 trials, were identified between January 2010 and January 2017. The pDFA in these studies could be grouped in 5 classes: antimicrobial peptides, chitosan, lysozyme, medium chain fatty acids/ triglycerides and plant extracts. Mixed-effect meta-analyses with type of pDFA as fixed effect were performed for the growth parameters 'average daily gain' (ADG) and 'feed conversion ratio' (FCR), which are the two most important and used economic performance parameters for farmers. For each class of pDFA, results of the meta-analysis showed significantly higher average daily gain in the group with pDFA compared to the negative control group, while no significant difference with the positive control group was observed. Furthermore, a positive effect on FCR was found, i.e. significantly less feed was needed to gain 1 kg of body weight in the group with pDFA compared to the negative control group. No significant differences with positive control groups were observed for each class of pDFA, except for plant extracts, where the FCR was also significantly reduced in the treatment group. These results suggest that pDFA could reduce the use of antimicrobials without significant negative effects on performance indicators.
Collapse
|
98
|
Jajere SM. A review of Salmonella enterica with particular focus on the pathogenicity and virulence factors, host specificity and antimicrobial resistance including multidrug resistance. Vet World 2019; 12:504-521. [PMID: 31190705 PMCID: PMC6515828 DOI: 10.14202/vetworld.2019.504-521] [Citation(s) in RCA: 290] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 02/11/2019] [Indexed: 12/03/2022] Open
Abstract
Salmonella genus represents the most common foodborne pathogens frequently isolated from food-producing animals that is responsible for zoonotic infections in humans and animal species including birds. Thus, Salmonella infections represent a major concern to public health, animals, and food industry worldwide. Salmonella enterica represents the most pathogenic specie and includes > 2600 serovars characterized thus far. Salmonella can be transmitted to humans along the farm-to-fork continuum, commonly through contaminated foods of animal origin, namely poultry and poultry-related products (eggs), pork, fish etc. Some Salmonella serovars are restricted to one specific host commonly referred to as "host-restricted" whereas others have broad host spectrum known as "host-adapted" serovars. For Salmonella to colonize its hosts through invading, attaching, and bypassing the host's intestinal defense mechanisms such as the gastric acid, many virulence markers and determinants have been demonstrated to play crucial role in its pathogenesis; and these factors included flagella, capsule, plasmids, adhesion systems, and type 3 secretion systems encoded on the Salmonella pathogenicity island (SPI)-1 and SPI-2, and other SPIs. The epidemiologically important non-typhoidal Salmonella (NTS) serovars linked with a high burden of foodborne Salmonella outbreaks in humans worldwide included Typhimurium, Enteritidis, Heidelberg, and Newport. The increased number of NTS cases reported through surveillance in recent years from the United States, Europe and low- and middle-income countries of the world suggested that the control programs targeted at reducing the contamination of food animals along the food chain have largely not been successful. Furthermore, the emergence of several clones of Salmonella resistant to multiple antimicrobials worldwide underscores a significant food safety hazard. In this review, we discussed on the historical background, nomenclature and taxonomy, morphological features, physical and biochemical characteristics of NTS with a particular focus on the pathogenicity and virulence factors, host specificity, transmission, and antimicrobial resistance including multidrug resistance and its surveillance.
Collapse
Affiliation(s)
- Saleh Mohammed Jajere
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Maiduguri, PMB 1069, Maiduguri, Borno State, Nigeria
| |
Collapse
|
99
|
Devanga Ragupathi NK, Muthuirulandi Sethuvel DP, Gajendran R, Anandan S, Walia K, Veeraraghavan B. Horizontal Transfer of Antimicrobial Resistance Determinants Among Enteric Pathogens Through Bacterial Conjugation. Curr Microbiol 2019; 76:666-672. [PMID: 30941540 DOI: 10.1007/s00284-019-01676-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 03/22/2019] [Indexed: 11/25/2022]
Abstract
Multi-drug resistance and transfer of mobile genetic elements among enteric pathogens is being reported to have increased rapidly. Commensal Escherichia coli was previously known to acquire mobile genetic elements from other genus/species. E. coli is also capable of disseminating these elements containing antimicrobial resistance determinants through horizontal transfer. Similarly, for Shigellae the antimicrobial resistance are on rise for fluoroquinolones and cephalosporins due to accumulation of mobile elements. Thus the study was hypothesized to investigate the role of transferable plasmids in commensal MDR E. coli vs Salmonella spp, and MDR Shigella flexneri vs Salmonella spp. pKP3-A plasmid containing qnrS1 was successfully transferred from E. coli to Salmonella spp. Similarly, a plasmid containing qnrS1 and blaCTX-M-15 was transferred from Shigella to Salmonella spp. However, blaCTX-M-15 was not transferred from E. coli as it was integrated into chromosome that was revealed by next-generation sequencing. This might be a reason that fluoroquinolone-resistant determinants are more frequently transferred than the cephalosporin resistant determinants. Findings from the study emphasize that mobile elements with AMR determinants are significant public health concern that has potential to rapidly disseminate.
Collapse
Affiliation(s)
| | | | - Revathi Gajendran
- Department of Clinical Microbiology, Christian Medical College, Vellore, 632 004, Tamil Nadu, India
| | - Shalini Anandan
- Department of Clinical Microbiology, Christian Medical College, Vellore, 632 004, Tamil Nadu, India
| | - Kamini Walia
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, 110 029, India
| | - Balaji Veeraraghavan
- Department of Clinical Microbiology, Christian Medical College, Vellore, 632 004, Tamil Nadu, India.
| |
Collapse
|
100
|
Abbas G, Khan I, Mohsin M, Sajjad-Ur-Rahman, Younas T, Ali S. High rates of CTX-M group-1 extended-spectrum β-lactamases producing Escherichia coli from pets and their owners in Faisalabad, Pakistan. Infect Drug Resist 2019; 12:571-578. [PMID: 30881062 PMCID: PMC6411320 DOI: 10.2147/idr.s189884] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Pet animals have been considered a potential carrier of clinically important multi-drug-resistant Escherichia coli. However, little is known about the role of pets as reservoirs of extended-spectrum β-lactamase (ESBL) producing E. coli in Pakistan. This study was designed to determine the prevalence and genetic relatedness of ESBL-producing multidrug-resistant E. coli in pets, their owners, and veterinary professionals. METHODS A total of 105 fecal samples were collected from dogs, cats, their owners, and veterinary professionals from veterinary clinics. Isolates of ESBL-producing E. coli were subjected to antimicrobial susceptibility testing. The presence of bla CTX-M genes and CTX-M groups I and II in multidrug-resistant E. coli was detected using PCR. Clonal diversity was checked using BOX-PCR. RESULTS Of the 105 fecal samples screened, 73 (69.5%) were found to contain ESBL-producing E. coli. The percentage of ESBL-producing E. coli isolates in dogs and dog owners was found to be 81.8% (18/22) and 59% (13/22), respectively. In cats, this percentage was 73.9% (17/23) and in cat owners, 56.5% (13/23). Furthermore, 80% (12/15) of E. coli isolates in veterinary professionals were ESBL producers. Of these 73 ESBL-producing E. coli isolates, 23 isolates exhibited a multidrug-resistant phenotype. The most prevalent multidrug-resistant pattern (17.4%) identified was resistant to ampicillin, cefotaxime, ciprofloxacin, and nitrofurantoin. In the multidrug-resistant E. coli, bla CTX-M was identified as the most common ESBL-producing genotype (19/23), with bla CTX-M-1 dominating in all 19 isolates. Furthermore, BOX-PCR analysis exhibited genetically diverse clonal groups among isolates of the CTX-M-1 group. CONCLUSION Our results provide important baseline information on the potential burden of multidrug-resistant E. coli among companion animals in Pakistan. Further studies are needed to understand the drivers of antimicrobial resistance at human-animal-environmental intersections.
Collapse
Affiliation(s)
- Ghazanfar Abbas
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan,
| | - Iahtasham Khan
- Section of Epidemiology and Public Health, Department of Clinical Sciences, University of Veterinary and Animal Sciences, Jhang, Pakistan
| | - Mashkoor Mohsin
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan,
| | - Sajjad-Ur-Rahman
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan,
| | - Tayyaba Younas
- Institute of Microbiology, University of Agriculture, Faisalabad, Pakistan,
| | - Shahzad Ali
- Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| |
Collapse
|