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Worku M, Tessema B, Ferede G, Ochieng L, Leliso SA, Mutua F, Moodley A, Grace D, Gelaw B. Campylobacter jejuni and Campylobacter coli infection, determinants and antimicrobial resistance patterns among under-five children with diarrhea in Amhara National Regional State, Northwest Ethiopia. PLoS One 2024; 19:e0304409. [PMID: 38959220 PMCID: PMC11221748 DOI: 10.1371/journal.pone.0304409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/11/2024] [Indexed: 07/05/2024] Open
Abstract
BACKGROUND Children with under-five year age disproportionally affected with foodborne illness. Campylobacteriosis is the most common foodborne disease next to Norovirus infection. Macrolides are commonly prescribed as the first line of treatment for Campylobacter gastroenteritis, with fluoroquinolone and tetracycline as secondary options. However, resistance to these alternatives has been reported in various regions worldwide. OBJECTIVE To determine the prevalence, associated risk-factors and antimicrobial resistance of Campylobacter jejuni and C. coli among under-five children with diarrhea. METHODS Institution-based cross-sectional study was conducted from November, 2022 to April 2023. The study sites were selected using a random sampling technique, while the study subjects were included using a convenient sampling technique. The data were collected using a structured questionnaire. Stool samples were inoculated onto modified charcoal cefoperazone deoxycholate agar and incubated for 48 hours. The suspected colonies were analyzed using matrix-assisted laser desorption ionization-time of flight mass spectrometry to confirm the species. Antimicrobial susceptibility testing was performed using a disc diffusion technique. All potential covariates (independent variables) were analyzed one by one using bivariate logistic regression model to identify candidate variables with P value < 0.25. Multivariable logistic analysis was used to identify potential associated factors using the candidate variables. A p value ≤ 0.05 at a 95% confidence interval was statistically significant. RESULT Among the 428 samples, 7.0% (CI: 4.5-9.3) were confirmed Campylobacter species. The prevalence of C. jejuni and C. coli among under-five children was 5.1% (CI: 3.0-7.0) and 1.9% (CI: 0.7-3.3), respectively. C. jejuni (73.3%) was dominant over C. coli (26.7%). The resident, contact with domestic animals, and parents/guardians education level were significantly associated with campylobacteriosis among under-five children. One-third of the Campylobacter isolates (33.3%, 10/30) were resistant to ciprofloxacin and tetracycline whereas 10.0% (3/30) were resistant to erythromycin. Furthermore, 3.3% (1/30) of the Campylobacter were found to be multidrug-resistant. CONCLUSION The prevalence of Campylobacter species was 7.0%. The resistance rate of Campylobacter species of ciprofloxacin and tetracycline-resistance strains was 33.3%. Peri-urban residence, contact with domestic animals, and low parental educational statuses were significantly associated factors with increased risk of Campylobacter infection. Continuous surveillance on antimicrobial resistance and health education of personal and environmental hygiene should be implemented in the community.
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Affiliation(s)
- Mesfin Worku
- Department of Medical Microbiology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Belay Tessema
- Department of Medical Microbiology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Institute of Clinical Immunology, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Getachew Ferede
- Department of Medical Microbiology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Linnet Ochieng
- Animal and Human Health Program, International Livestock Research Institute (ILRI), Nairobi, Kenya
| | | | - Florence Mutua
- Animal and Human Health Program, International Livestock Research Institute (ILRI), Nairobi, Kenya
| | - Arshnee Moodley
- Animal and Human Health Program, International Livestock Research Institute (ILRI), Nairobi, Kenya
- Department of Veterinary and Animal Science, Faculty of Health and Medical Science, University of Copenhagen, Frederiksberg C, Denmark
| | - Delia Grace
- Animal and Human Health Program, International Livestock Research Institute (ILRI), Nairobi, Kenya
- Natural Resource Institute, University of Greenwich, London, United Kingdom
| | - Baye Gelaw
- Department of Medical Microbiology, School of Biomedical and Laboratory Science, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Solís D, Toro M, Navarrete P, Faúndez P, Reyes-Jara A. Microbiological Quality and Presence of Foodborne Pathogens in Raw and Extruded Canine Diets and Canine Fecal Samples. Front Vet Sci 2022; 9:799710. [PMID: 35923819 PMCID: PMC9339799 DOI: 10.3389/fvets.2022.799710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 06/23/2022] [Indexed: 11/13/2022] Open
Abstract
Pet food can be a source of microbiological hazards that might affect companion animals and owners. Even though owners usually rely on conventional pet diets, such as extruded diets, new feeding practices, such as raw meat-based diets (RMBDs), have grown. RMBDs' benefits are still scientifically uncertain, while its risks have been documented. The use of canine RMBDs might increase the exposure to zoonotic pathogens, such as Salmonella spp., Listeria monocytogenes, Campylobacter spp., among others. Identifying pathogen prevalence in canine food and pets is required to contribute to public health measures. The aims of this study were: (1) to compare the microbiological quality of RMBDs and extruded diets (2) to identify and compare the prevalence of Salmonella spp., Campylobacter jejuni, and L. monocytogenes from raw and extruded canine diets and canine fecal samples, and (3) to characterize pet owners according to the diet chosen to be used on their pets, their motivations for using RMBDs, and their knowledge about benefits and risks related to this feeding practice. Conventional and molecular microbiological methods were used to identify pathogen presence from food and fecal samples, while pulsed-field gel electrophoresis (PFGE) was performed to evaluate the clonal relationship between isolates. Aerobic plate counts for RMBDs were higher than those detected for extruded diets. Salmonella spp. and L. monocytogenes were isolated from 35.7% (15/42) RMBDs, while Salmonella spp., C. jejuni, and L. monocytogenes from 33.3% (11/33) fecal samples from RMBD-fed dogs. From the RMBD samples positive to Salmonella spp., chicken was the main meat ingredient composing the diets. PFGE analysis confirmed a genetic association between Salmonella spp. isolates from fecal and raw food samples from the same household. We did not detect pathogens from extruded food samples or feces from extruded-fed dogs. Using a survey, we identified dog owners' unawareness and/or underestimation of risks related to RMBDs. We demonstrated that canine raw pet food might be a source of zoonotic foodborne pathogens that represent a health risk for both humans and pets. While clinical findings caused by the mentioned pathogens vary among pets, the zoonotic potential implies a significant concern.
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Affiliation(s)
- Doina Solís
- Laboratorio de Microbiología y Probióticos, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Magaly Toro
- Laboratorio de Microbiología y Probióticos, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Paola Navarrete
- Laboratorio de Microbiología y Probióticos, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
| | - Patricio Faúndez
- Red de Atención Veterinaria, Hospital de Alta Complejidad Bilbao, Universidad de Chile, Santiago, Chile
| | - Angélica Reyes-Jara
- Laboratorio de Microbiología y Probióticos, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago, Chile
- *Correspondence: Angélica Reyes-Jara
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Murawska M, Sypecka M, Bartosik J, Kwiecień E, Rzewuska M, Sałamaszyńska-Guz A. Should We Consider Them as a Threat? Antimicrobial Resistance, Virulence Potential and Genetic Diversity of Campylobacter spp. Isolated from Varsovian Dogs. Antibiotics (Basel) 2022; 11:antibiotics11070964. [PMID: 35884218 PMCID: PMC9311969 DOI: 10.3390/antibiotics11070964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 12/10/2022] Open
Abstract
Campylobacteriosis seems to be a growing problem worldwide. Apart from the most common sources of numerous Campylobacter species, such as poultry and other farm animals, dogs may be an underrated reservoir of this pathogen. Our goal was to establish the frequency of occurrence, antimicrobial resistance, and detection of chosen virulence factor genes in genomes of canine Campylobacter isolates. Campylobacter isolates frequency in dogs from shelters, and private origin was 13%. All of the tested virulence factor genes were found in 28 of 31 isolates. We determined high resistance levels to the ciprofloxacin and ampicillin and moderate tetracycline resistance. For C. jejuni shelter isolates, genetic diversity was also determined using PFGE. Our results indicate that dogs may be the reservoir of potentially diverse, potentially virulent, and antimicrobial-resistant Campylobacter strains.
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Affiliation(s)
- Małgorzata Murawska
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (E.K.); (M.R.)
- Correspondence: (M.M.); (A.S.-G.)
| | - Monika Sypecka
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, Pawińskiego 5, 02-106 Warsaw, Poland;
| | - Justyna Bartosik
- Division of Parasitology and Invasive Diseases, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland;
| | - Ewelina Kwiecień
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (E.K.); (M.R.)
| | - Magdalena Rzewuska
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (E.K.); (M.R.)
| | - Agnieszka Sałamaszyńska-Guz
- Division of Microbiology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland; (E.K.); (M.R.)
- Correspondence: (M.M.); (A.S.-G.)
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de Melo RT, Dumont CF, Braz RF, Monteiro GP, Takeuchi MG, Lourenzatto ECA, Dos Santos JP, Rossi DA. Genotypical Relationship Between Human and Poultry Strains of Campylobacter jejuni. Curr Microbiol 2021; 78:2980-2988. [PMID: 34089354 DOI: 10.1007/s00284-021-02553-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 05/26/2021] [Indexed: 11/30/2022]
Abstract
This study aimed to compare the genotype diversity of C. jejuni isolates. From the total of 64 C. jejuni strains evaluated, 44 were isolated from broiler carcasses (2015-2016) and 20 from hospitalized patients with gastroenteritis caused by the microorganism (2000-2006). The strains were correlated for the presence of flaA, pldA, cadF, ciaB, cdtABC, luxS, dnaJ, cbrA, htrA, pVir, Hcp, cstII, and neuA genes by PCR (polymerase chain reaction) and for phylogenetic proximity by PFGE (pulsed-field gel electrophoresis). Of the total strains studied, 28 (43.7%) presented all the studied genes, except pVir. Among these strains, 25 (89.3%) were of poultry origin. Poultry strains showed a higher prevalence (P < 0.05) of genes linked to adhesion, colonization, invasion, cytotoxicity, biofilm formation, and adaptation to adverse conditions. Additionally, the profile that denotes the presence of all genes identified in the study (P1) was identified in 56.8% of poultry strains and in 15.0% of human strains. Molecular typing analysis identified five pulsotypes, none of which grouped strains from different origins. Although human strains were from hospitalized patients, they presented limited virulence capacity and adaptability to adverse conditions compared to chicken carcasses, besides being different in molecular typing. However, the ability to cause Guillain-Barré Syndrome is equal for both strains. In general, poultry strains, being more recent, are more specialized to adapt to the environment, invade, and cause disease in the human host.
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Affiliation(s)
- Roberta Torres de Melo
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil.
| | - Carolyne Ferreira Dumont
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil
| | - Raquelline Figueiredo Braz
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil
| | - Guilherme Paz Monteiro
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil
| | - Micaela Guidotti Takeuchi
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil
| | | | | | - Daise Aparecida Rossi
- Laboratory of Molecular Epidemiology, Faculty of Veterinary Medicine, Federal University of Uberlândia, Ceará Street s/n, Block 2D 44, Umuarama, Uberlândia, MG, 38402-018, Brazil
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5
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Ribeiro LNDM, de Paula E, Rossi DA, Martins FA, de Melo RT, Monteiro GP, Breitkreitz MC, Goulart LR, Fonseca BB. Nanocarriers From Natural Lipids With In Vitro Activity Against Campylobacter jejuni. Front Cell Infect Microbiol 2021; 10:571040. [PMID: 33489930 PMCID: PMC7820125 DOI: 10.3389/fcimb.2020.571040] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/25/2020] [Indexed: 12/17/2022] Open
Abstract
Campylobacter jejuni (CJ) is the most prevalent zoonotic pathogen of chicken meat and related products, which may lead to gastroenteritis and autoimmune diseases in humans. Although controlling this bacterium is important, CJ strains resistance against traditional antibiotic therapy has been increased. Vegetable oils and fats are natural biomaterials explored since the Ancient times, due to their therapeutic properties. Nanotechnology has promoted the miniaturization of materials, improving bioavailability and efficacy, while reducing the toxicity of loaded active molecules. In this work, a screening of 28 vegetable oils was firstly performed, in order to select anti-CJ candidates by the disc diffusion test. Thus, the selected liquid lipids were used as active molecules in nanostructured lipid carriers (NLC) formulations. The three resultant systems were characterized in terms of particle size (~200 nm), polydispersity index (~0.15), and zeta potential (~-35mV), and its physicochemical stability was confirmed for a year, at 25°C. The structural properties of NLC were assessed by infrared (FTIR-ATR) and differential scanning calorimetry (DSC) analyses. The spherical nanoparticle morphology and narrow size distribution was observed by transmission electron microscopy (TEM) and field emission scanning electron (FE-SEM) analyses, respectively. Then, the in vitro antimicrobial activity test determined the minimum inhibitory concentration (MIC) of each formulation against CJ strains, in both free (1-3 mg/ml-1) and sessile (0.78 mg/ml-1) forms. Finally, the in vitro biocompatibility of NLC was demonstrated through cell viability using VERO cell line, in which F6 was found twice less cytotoxic than pure olibanum oil. Considering the abovementioned achieved, F6 formulation is able to be evaluated in the in vivo anti-CJ efficacy assays.
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Affiliation(s)
- Lígia Nunes de Morais Ribeiro
- School of Veterinary Medicine, Federal University of Uberlandia, Uberlândia, Brazil.,Institute of Biotechnology, Federal University of Uberlandia, Uberlândia, Brazil.,Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | | | - Flávia Alves Martins
- Institute of Biotechnology, Federal University of Uberlandia, Uberlândia, Brazil
| | | | | | | | - Luiz Ricardo Goulart
- Institute of Biotechnology, Federal University of Uberlandia, Uberlândia, Brazil
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Gharibi D, Mosallanejad B, Avizeh R, Feyzabadi M. Isolation, Molecular Detection, and Risk Factors of Campylobacter Infection From Companion Dogs. INTERNATIONAL JOURNAL OF ENTERIC PATHOGENS 2020. [DOI: 10.34172/ijep.2020.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Campylobacter is an organism that is usually associated with diarrhea in pet animals and humans, as well as other domestic, wild, and laboratory animals. Objective: The aim of the present survey was the isolation, molecular detection, and risk factors of Campylobacter infection from companion dogs referred to the Veterinary Hospital of Ahvaz district, the South-West of Iran. Materials and Methods: Rectal swabs were examined by culture and polymerase chain reaction (PCR) methods from 122 companion dogs (52 diarrheic and 70 clinically healthy). Several risk factors were reviewed, including age, gender, breed, nutrition status, and lifestyle. Results: The results showed that only five samples (4.1%) were positive for Campylobacter spp. in the culture method. Campylobacter spp. was detected in 18 out of 122 dogs by the PCR, yielding an overall prevalence of 14.8%. The most prevalent species of Campylobacter among the referred dogs were C. coli (38.89%) and C. jejuni (33.33%). A lower prevalence was found for C. upsaliensis (11.11%) and C. lari (5.55%). Concurrent infections were observed in two cases of C. upsaliensis + C. lari (5.55%) and C. coli + C. lari (5.55%). No significant difference was noted between healthy (11.43%) and diarrheic (19.23%) dogs (P>0.05). Eventually, age, gender, breed, nutrition status, and lifestyle had no significant effect on Campylobacter infection (P>0.05). Conclusion: Although the prevalence of Campylobacter was moderate in the dog population of Ahvaz district, these bacteria can constitute a public health hazard because of the frequent presence of Campylobacter species in the feces.
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Affiliation(s)
- Darioush Gharibi
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Bahman Mosallanejad
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Reza Avizeh
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mahboobeh Feyzabadi
- Graduated of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Dias TS, Nascimento RJ, Machado LS, Abreu DLC, do Nascimento ER, Pereira VLA, de Aquino MHC. Comparison of antimicrobial resistance in thermophilic Campylobacter strains isolated from conventional production and backyard poultry flocks. Br Poult Sci 2020; 62:188-192. [PMID: 33026245 DOI: 10.1080/00071668.2020.1833302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
1. The aim of this study was to compare the resistance pattern of thermophilic Campylobacter spp. isolated from conventional production (n = 34) and backyard poultry flocks (n = 36) from Rio de Janeiro State, Brazil. The disc diffusion method and statistical tests were used for investigation and analysis of the resistance pattern of Campylobacter spp. isolated from different rearing systems.2. Antimicrobial resistance percentages to amoxycillin with clavulanic acid (AMC), ampicillin (AMP), ceftiofur (CTF), ciprofloxacin (CIP), enrofloxacin (ENO), erythromycin (ERI), gentamicin (GEN) and tetracycline (TET) were 32.4%, 44.1%, 67.6%, 97.1%, 82.4%, 26.5%, 5.9% and 38.2% in conventional production flocks respectively, while the backyard flock's resistance levels were 0.0%, 13.9%, 69.4%, 100.0%, 91.7%, 5.6%, 0.0% and 16.7%, respectively.3. Campylobacter spp. from conventional poultry production was more resistant to AMC, AMO, ERI and TET (P > 0.05) when compared to strains from backyard poultry. A higher frequency of resistance to fluoroquinolones (FLQ), CIP and ENO, was observed in strains from both systems, demonstrating the spread of resistant strains among poultry production environments.
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Affiliation(s)
- T S Dias
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - R J Nascimento
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - L S Machado
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - D L C Abreu
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil.,Public Health Department, Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - E R do Nascimento
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil.,Public Health Department, Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - V L A Pereira
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil.,Public Health Department, Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
| | - M H C de Aquino
- Post-graduation Program in Veterinary Medicine (Veterinary Hygiene and Processing Technology of Animal Products), Faculty of Veterinary, Fluminense Federal University (UFF), Brazil.,Public Health Department, Faculty of Veterinary, Fluminense Federal University (UFF), Brazil
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Dias TS, Machado LS, Vignoli JA, Cunha NC, Nascimento ER, Pereira VLA, Aquino MHC. Phenotypic and molecular characterization of erythromycin resistance in Campylobacter jejuni and Campylobacter coli strains isolated from swine and broiler chickens. PESQUISA VETERINÁRIA BRASILEIRA 2020. [DOI: 10.1590/1678-5150-pvb-6466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT: Campylobacter spp. is a bacterial agent that causes gastroenteritis in humans and may trigger Guillain-Barré Syndrome (GBS) and is also considered one of the main foodborne diseases in developed countries. Poultry and pigs are considered reservoirs of these microorganisms, as well as raw or undercooked by-products are often incriminated as a source of human infection. Treatment in human cases is with macrolide, such erythromycin, that inhibits the protein synthesis of the microorganism. This study aimed to isolate Campylobacter jejuni and Campylobacter coli from intestinal content samples of broiler chickens (n=20) and swine (n=30) to characterize the erythromycin resistance profile of the strains and to detect molecular mechanisms involved in this resistance. The minimum inhibitory concentration was determined by agar dilution. The Mismatch Amplification Mutation Assay-Polymerase Chain Reaction (MAMA-PCR) was performed to detect mutations at positions 2074 and 2075 of 23S rRNA region, in addition to PCR test to detect the erm(B) gene. From the intestinal content of broiler chickens, 18 strains of C. jejuni and two strains of C. coli were isolated, whereas, from swine samples, no C. jejuni strain and 14 strains of C. coli were isolated. All C. coli strains were resistant, and three C. jejuni strains from broilers chickens were characterized with intermediate resistance to erythromycin. The MIC of the strains ranged from ≤0.5mg/μL to ≥128mg/μL. All resistant strains had the A2075G mutation, and one strain with intermediate resistance had the A2075G mutation. However, the A2074C mutation and the erm(B) gene were not detected. High resistance levels were detected in C. coli strains isolated from swine. The MAMA-PCR is a practical tool for detecting the erythromycin resistance in Campylobacter strains.
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Affiliation(s)
| | - Leandro S. Machado
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense, Brazil
| | | | | | - Elmiro R. Nascimento
- Universidade Federal Fluminense, Brazil; Universidade Federal Fluminense, Brazil
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Selwet M. The Prevalence of Virulence Genes and Multidrug Resistance in Thermophilic Campylobacter Spp. Isolated from Dogs. Open Life Sci 2019; 14:681-687. [PMID: 33817207 PMCID: PMC7874824 DOI: 10.1515/biol-2019-0077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/16/2019] [Indexed: 11/25/2022] Open
Abstract
The aim of the study was to determine the role of dogs as a potential reservoir of Campylobacter spp. At the next stage of the research the frequency of occurrence of selected virulence genes, i.e. cadF, flaA and iam as well as genes responsible for the formation the cytolethal distending toxin (CDT), i.e. cdtA, cdtB and cdtC was determined. The isolates obtained in the research were tested for their resistance to selected antibiotics: ciprofloxacin (CIP), enrofloxacin (EF), erythromycin (E) and tetracycline (TE). Campylobacter spp. was found in 63 (12.6%) out of a total number of 500 isolates. 61 (12.2%) isolates were identified as C. jejuni. The number of C. jejuni isolates found in the younger animals was smaller (p <0.05) than in the older ones. The frequency of occurrence of virulence genes and the genes responsible for the formation of CDT was significantly (p <0.05) higher in the older dogs. A comparison of the effect of antibiotics showed that the isolates obtained from both age groups exhibited low resistance to erythrosine (13.5% in the group aged under 1 year and 8.6% in the group aged over 1 year). Both groups exhibited the highest resistance to ciprofloxacin and enrofloxacin.
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Affiliation(s)
- Marek Selwet
- Department of General and Environmental Microbiology, Poznań University of Life Sciences, ul. Szydłowska 28, 60-637 Poznań, Poland
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10
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Mohan V, Habib I. Multilocus sequence typing (MLST), porA and flaA typing of Campylobacter jejuni isolated from cats attending a veterinary clinic. BMC Res Notes 2019; 12:76. [PMID: 30717780 PMCID: PMC6360738 DOI: 10.1186/s13104-019-4107-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 01/31/2019] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Campylobacter is a major cause of gastroenteritis in humans and pet ownership is a risk factor for infection. To study the occurrence, species distribution and sequence-based types of Campylobacter spp. in pet cats, 82 faecal samples were collected from cats in New Zealand. The PCR positive samples of Campylobacter jejuni were characterized by multilocus sequence typing (MLST), major outer membrane protein gene (porA) and flagellin A gene (flaA) sequence typing. RESULTS Seven faecal samples were tested positive for Campylobacter spp. (9%, or 4-17% at 95% confidence interval), of which six were identified as C. jejuni, and one was C. upsaliensis. The six C. jejuni isolates were characterised by MLST; four belonged to ST-45 clonal complex and two of the isolates could not be typed. Two flaA-SVR types were identified: three samples were flaA-SVR type 8 and one belonged to 239. By combining all data, three isolates were indistinguishable with allelic combinations of ST-45, flaA-SVR 8, porA 44, although no epidemiological connection between these isolates could be established. To conclude, healthy cats can carry C. jejuni, whose detected genetic diversity is limited. The isolated sequence type ST-45 is frequently reported in human illnesses.
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Affiliation(s)
- Vathsala Mohan
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
| | - Ihab Habib
- School of Veterinary Medicine, Murdoch University, Perth, Western Australia Australia
- High Institute of Public Health, Alexandria University, Alexandria, Egypt
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11
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Affiliation(s)
- E Acke
- Vet Med Labor GmbH, IDEXX Laboratories, Mörikestraβe 28/3, Ludwigsburg 71636, Germany
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12
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Silva WC, Targino BN, Mendonça RS, Sant’Ana AS, Hungaro HM. Campylobacter: An overview of cases, occurrence in food, contamination sources, and antimicrobial resistance in Brazil. FOOD REVIEWS INTERNATIONAL 2017. [DOI: 10.1080/87559129.2017.1298125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Willian Cruzeiro Silva
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Brenda Neres Targino
- Department of Food Sciences, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, MG, Brazil
| | | | - Anderson S. Sant’Ana
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | - Humberto Moreira Hungaro
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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