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Heydari H, Iranikhah A, Ghasemi A, Mohammadbeigi A, Sadat-Mirei SA, Shams S, Kermani S. Evaluation of the prevalence of Aeromonas spp., Campylobacter spp., and Clostridioides difficile in immunocompromised children with diarrhea. BMC Infect Dis 2024; 24:512. [PMID: 38778271 PMCID: PMC11110422 DOI: 10.1186/s12879-024-09372-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 05/02/2024] [Indexed: 05/25/2024] Open
Abstract
AIM Diarrhea is a common disease in immunocompromised patients and can be associated with greater morbidity and even mortality. Therefore, the present study was designed to determine the prevalence of Aeromonas spp., Campylobacter spp., and C. difficile among immunocompromised children. METHODS This study was conducted on 130 stool samples from patients with diarrhea who had defects in the immune system and were referred to Hazrat Masoumeh Children's Hospital in Qom. Demographic information, clinical symptoms, immune status, and duration of chemotherapy were also recorded for each child. DNAs were extracted from the stool, and then direct PCR assays were done by specific primers for the detection of Aeromonas spp., Campylobacter spp., and toxigenic C. difficile, including tcdA/B and cdtA/B genes. Co-infection in patients was also evaluated. RESULTS 60.8% and 39.2% were male and female, respectively, with a m ± SD age of 56.72 ± 40.49 months. Most cases of immunocompromised states were related to Acute Lymphocytic Leukemia (77.7%) and Non-Hodgkin Lymphoma (14.6%). 93.1% of patients were undergoing chemotherapy during the study. Among patients, most clinical symptoms were related to bloody diarrhea (98.5%) and fever (92.3%). Based on PCR, 14.6, 9.2, and 1.5% were positive for Aeromonas spp., C. difficile, and C. jejuni, respectively. Among the C. difficile-positive cases, the tcdA gene was only detected in one patient. In total, three co-infections were identified, which included Aeromonas spp./C. difficile (tcdA+), C. jejuni/C. difficile, and C. jejuni/Aeromonas spp. CONCLUSIONS This is the first study in Iran to investigate the simultaneous prevalence of some pathogens in immunocompromised children with diarrhea. Because Aeromonas spp., Campylobacter spp., and C. difficile are not routinely detected in some laboratories, infections caused by them are underappreciated in the clinic. Our results showed that these pathogens are present in our region and can cause gastroenteritis in children, especially those with underlying diseases. Therefore, increasing the level of hygiene in some areas and controlling bacterial diarrheal diseases should be given more attention by health officials.
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Affiliation(s)
- Hosein Heydari
- Pediatric Medicine Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Abolfazl Iranikhah
- Gastroenterology and Hepatology Diseases Research Center, Qom University of Medical Sciences, Qom, Iran
| | - Ahmad Ghasemi
- Department of Microbiology, Research Center of Reference Health Laboratories, Ministry of Health and Medical Education, Tehran, Iran
| | - Abolfazl Mohammadbeigi
- Department of Epidemiology and Biostatistics, School of Health, Qom University of Medical Sciences, Qom, Iran
| | | | - Saeed Shams
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.
| | - Somayeh Kermani
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.
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Lu TH, Chen CY, Wang WM, Liao CM. One Health-based management for sustainably mitigating tetracycline-resistant Aeromonas hydrophila-induced health risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123943. [PMID: 38599271 DOI: 10.1016/j.envpol.2024.123943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/17/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
Aeromonas hydrophila has ability to spread tetracycline resistance (tetR) under stresses of oxytetracycline (OTC), one of the most important antibiotics in aquaculture industry. Even though environmental reservoir of Aeromonas allows it to be at interfaces across One Health components, a robust modelling framework for rigorously assessing health risks is currently lacking. We proposed a One Health-based approach and leveraged recent advances in quantitative microbial risk assessment appraised by available dataset to interpret interactions at the human-animal-environment interfaces in various exposure scenarios. The dose-response models were constructed considering the effects on mortality for aquaculture species and tetR genes transfer for humans. A scenario-specific risk assessment on pond species-associated A. hydrophila infection and human gut-associated tetR genes transfer was examined. Risk-based control strategies were involved to test their effectiveness. We showed that farmed shrimp exposed to tetracycline-resistant A. hydrophila in OTC-contaminated water experienced higher infection risk (relative risk: 1.25-1.34). The tetR genes transfer risk for farmers in shrimp ponds (∼2 × 10-4) and swimmers in coastal areas (∼4 × 10-6) during autumn exceeded acceptable risk (10-6). This cautionary finding underscores the importance of accounting for monitoring, assessing, and mitigating occupational health hazards among workers in shrimp farming sectors within future One Health-based strategies for managing water infection risks. We recommend that OTC emission rate together with A. hydrophila concentration should be reduced by up to 70-99% to protect human, farmed shrimp, and environmental health. Our predictive framework can be adopted for other systems and be used as a "risk detector" for assessing tetR-related health risks that invoke potential risk management on addressing sustainable mitigation on offsetting residual OTC emission and tetR genes spread in a species-human-environmental health system.
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Affiliation(s)
- Tien-Hsuan Lu
- Department of Science Education and Application, National Taichung University of Education, Taichung, 403514, Taiwan, ROC.
| | - Chi-Yun Chen
- Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, FL, 32610, USA; Center for Environmental and Human Toxicology, University of Florida, FL, 32608, USA
| | - Wei-Min Wang
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 106319, Taiwan, ROC
| | - Chung-Min Liao
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 106319, Taiwan, ROC
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Chen JS, Hsu BM, Ko WC, Wang JL. Comparison of antibiotic-resistant Escherichia coli and extra-intestinal pathogenic E. coli from main river basins under different levels of the sewer system development. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115372. [PMID: 37619401 DOI: 10.1016/j.ecoenv.2023.115372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 06/30/2023] [Accepted: 08/13/2023] [Indexed: 08/26/2023]
Abstract
Antimicrobial-resistant Escherichia coli in the aquatic environments is considered a strong indicator of sewage or animal waste contamination and antibiotic pollution. Sewer construction and wastewater treatment plant (WWTP) infrastructure may serve as concentrated point sources of contamination of antibiotic-resistant bacteria and antibiotic resistance genes. In this study, we focused on the distribution of antimicrobial-resistant E. coli in two rivers with large drainage areas and different urbanisation levels. E. coli from Kaoping River with drainage mainly from livestock farming had higher resistance to antibiotics (e.g. penicillins, tetracyclines, phenicols, aminoglycosides, and sulpha drugs) and presented more positive detection of antibiotic-resistance genes (e.g. ampC, blaTEM, tetA, and cmlA1) than that from Tamsui River. In Kaoping River with a lower percentage of sewer construction nearby (0-30%) in contrast to a higher percentage of sewer construction (55-92%) in Tamsui River, antimicrobial-resistant E. coli distribution was related to livestock farming waste. In Tamsui River, antimicrobial resistant E. coli isolates were found more frequently in the downstream drainage area of WWTPs with secondary water treatment than that of WWTPs with tertiary water treatment. The Enterobacterial Repetitive Intergenic Consensus (ERIC) PCR showed that the fingerprinting group was significantly related to the sampling site (p < 0.01) and sampling date (p < 0.05). By utilising ERIC-PCR in conjunction with antibiotic susceptibility and antibiotic-resistance gene detection, the relationship among different strains of E. coli could be elucidated. Furthermore, we identified the presence of six extra-intestinal pathogenic E. coli isolates and antibiotic-resistant E. coli isolates near drinking water sources, posing a potential risk to public health through community transmission. In conclusion, this study identified environmental factors related to antibiotic-resistant bacteria and antibiotic-resistance gene contamination in rivers during urban development. The results facilitate the understanding of specific management of different waste streams across different urban areas. Periodic surveillance of the effects of WWTPs and livestock waste containing antibiotic-resistant bacteria and antibiotic-resistance genes on river contamination is necessary.
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Affiliation(s)
- Jung-Sheng Chen
- Department of Medical Research, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Bing-Mu Hsu
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi, Taiwan
| | - Wen-Chien Ko
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jiun-Ling Wang
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Eid HM, El-Mahallawy HS, Shalaby AM, Elsheshtawy HM, Shetewy MM, Eidaroos NH. Emergence of extensively drug-resistant Aeromonas hydrophila complex isolated from wild Mugil cephalus (striped mullet) and Mediterranean seawater. Vet World 2022; 15:55-64. [PMID: 35369605 PMCID: PMC8924385 DOI: 10.14202/vetworld.2022.55-64] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/14/2021] [Indexed: 12/23/2022] Open
Abstract
Background and Aim: Antibiotic resistance has been a progressively documented problem, resulting in treatment failure in humans and animals. This study aimed to investigate the antimicrobial susceptibility and virulence of extensively drug-resistant (XDR) Aeromonas spp. in wild Mugil cephalus and its surrounding seawater along the coastal road of Port Said, Egypt. Materials and Methods: Specimens were examined bacteriologically, confirmed biochemically, and tested for their sensitivity against 11 antimicrobial agents. Molecular confirmation of the obtained isolates by 16S rRNA was performed, followed by the detection of antimicrobial resistance and virulence genes. Results: Aeromonas spp. was recovered from fish (44%) and water samples (36%). A. hydrophila was the most prevalent identified strain, followed by Aeromonas sobria, Aeromonas caviae, and Aeromonas schubertii. Moreover, 90% of the tested isolates were multidrug-resistant (MDR), while 26.67% were XDR. Tested isolates were resistant to b-lactams and sulfonamides (100%), oxytetracycline (90%), and streptomycin (62.22%) but completely susceptible to cefotaxime. XDR isolates successfully amplified resistance genes (blaTEM , sul1, and tetA(A)) but not the (aadA1) gene, although there was phenotypic resistance to streptomycin on plates. All XDR isolates carry the cytotoxic enterotoxin gene (act), but alt gene was detected in only one isolate (12.5%). Conclusion: Data in this study provide a recent update and highlight the role of wild mullet and seawater as reservoirs for MDR and XDR Aeromonas spp. that may pose a risk to humans as food-borne infection or following direct contact.
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Affiliation(s)
- Hamza Mohamed Eid
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Heba Sayed El-Mahallawy
- Department of Animal Hygiene, Zoonoses, and Animal Behaviour and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Amany Mahmoud Shalaby
- Department of Food Hygiene, Animal Health Research Institute, Port Said Branch, Port Said, Egypt
| | - Hassnaa Mahmoud Elsheshtawy
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | | | - Nada Hussein Eidaroos
- Department of Bacteriology, Immunology, and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
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Chen JS, Hsu GJ, Hsu BM, Yang PY, Kuo YJ, Wang JL, Hussain B, Huang SW. Prevalence, virulence-gene profiles, antimicrobial resistance, and genetic diversity of human pathogenic Aeromonas spp. from shellfish and aquatic environments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117361. [PMID: 34004475 DOI: 10.1016/j.envpol.2021.117361] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Aeromonas are found in various habitats, particularly in aquatic environments. This study examined the presence of the most common human pathogenic Aeromonas species (Aeromonas caviae, A. hydrophila, and A. veronii) in surface water, sea water, and shellfish. The detection rates in fishing harbour seawater, shellfish farming seawater, and a river basin were 33.3%, 26.4%, and 29.4%, respectively, and high prevalence was observed in summer. The detection rates in shellfish procured from a fish market and shellfish farm were 34.9% and 13.3%, respectively. The most abundant species of human pathogenic Aeromonas detected via water sampling was A. caviae, whereas that obtained via shellfish sampling was A. veronii. The prevalence of human pathogenic Aeromonas in river water was lower in fishing harbours and in the estuary shellfish farming area. Here, 25 isolates of human pathogenic Aeromonas species were isolated from 257 samples and divided among 16 virulence profiles. The high virulence gene-carrying isolates (more than six genes) belonged to A. hydrophila. The shellfish-sourced isolates had the highest detection rates of act, aerA, and fla genes than of other virulence genes, and vice versa for seawater-sourced isolates. The Aeromonas isolates showed high levels of resistance to ampicillin-sulbactam; however, none were resistant to cefepime, ciprofloxacin, or gentamicin. The incidence of multiple drug resistance (MDR) in Aeromonas isolates was 20%. In this study, phylogenetic analysis with 16S rRNA sequencing, biochemical tests and enterobacterial repetitive intergenic consensus-polymerase chain reaction fingerprinting facilitated the distinct categorisation of three species of human pathogenic Aeromonas isolates. In addition, A. veronii isolates from the same geographical area were also concentrated in the same cluster. This study provides information on the risk of infection by Aeromonas with MDR and multiple virulence genes isolated from shellfish and aquatic environments.
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Affiliation(s)
- Jung-Sheng Chen
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Department of Medical Research, E-Da Hospital, Kaohsiung, Taiwan
| | - Gwo-Jong Hsu
- Division of Infectious Diseases, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chiayi City, Taiwan
| | - Bing-Mu Hsu
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Center for Innovative on Aging Society, National Chung Cheng University, Chiayi County, Taiwan.
| | - Pei-Yu Yang
- Department of Laboratory, Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Yi-Jie Kuo
- Department of Orthopedic Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Orthopedic Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jiun-Ling Wang
- Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Bashir Hussain
- Department of Earth and Environmental Sciences, National Chung Cheng University, Chiayi County, Taiwan; Department of Biomedical Sciences, National Chung Cheng University, Chiayi County, Taiwan
| | - Shih-Wei Huang
- Center for Environmental Toxin and Emerging Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan; Super Micro Research and Technology Center, Cheng Shiu University, Kaohsiung, Taiwan
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6
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Solaiman S, Micallef SA. Aeromonas spp. diversity in U.S. mid-Atlantic surface and reclaimed water, seasonal dynamics, virulence gene patterns and attachment to lettuce. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 779:146472. [PMID: 34030273 DOI: 10.1016/j.scitotenv.2021.146472] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/14/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Aeromonas, a ubiquitous taxon in water environments, is emerging as a foodborne pathogen of concern that remains understudied and under-reported. We evaluated the distribution of 331 Aeromonas spp. isolates collected from irrigation water over one year and characterised their virulence profile, attachment and ability to persist on lettuce. Water sources included non-tidal and tidal river, farm pond and reclaimed water. Twenty Aeromonas species were identified; A. veronii, A. hydrophila and A. jandaei predominated in all water types and seasons, comprising ~63% of isolates. Species distribution was most affected by water type. The highest and lowest diversity were detected in river and pond water, respectively. A. hydrophila and A. veronii ranked highest in frequency in fresh river and reclaimed water, while A. jandaei ranked first in pond water. Only two isolates carried all five virulence genes tested, while 46% of A. hydrophila (n = 50), 54% of A. veronii (n = 61) and 50% of A. jandaei (n = 32) isolates harboured multiple enterotoxin genes. Detection of alt and ast genes was more likely in summer collections, while ast detection was less likely in tidal brackish river and pond water isolates. Season was a factor in attachment to polystyrene, being strongest in spring isolates. The gene flaA was associated with strong attachment and was more likely to be detected in non-tidal fresh river isolates. A. hydrophila and A. jandaei isolates persisted on lettuce leaves for 24 h, but populations dwindled over 120 h, while loosely and strongly attached cells of A. veronii isolates persisted for 120 h. This study provides comprehensive data on Aeromonas species distribution and environmental traits. The associations revealed among diversity, water type, season, virulence factors and phyllosphere attachment capacity can inform agricultural water standards in novel ways. Moreover, understanding Aeromonas-plant interactions is an important step in advancing food safety of fruit and vegetables.
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Affiliation(s)
- Sultana Solaiman
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA.
| | - Shirley A Micallef
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA; Centre for Food Safety and Security Systems, University of Maryland, College Park, MD 20742, USA.
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7
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De Silva LADS, Wickramanayake MVKS, Heo GJ. Virulence and antimicrobial resistance potential of Aeromonas spp. associated with shellfish. Lett Appl Microbiol 2021; 73:176-186. [PMID: 33891720 DOI: 10.1111/lam.13489] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 12/17/2022]
Abstract
Aeromonas spp. are associated with seafood-related outbreaks worldwide. In seafood industry, shellfish play a major role in global seafood production. With this emerging trend of shellfish consumption, shellfish-related bacterial infections are being reported frequently. Aeromonas spp. are natural contaminants found in shellfish. Although 36 species have been identified, some species including Aeromonas hydrophila, Aeromonas caviae and Aeromonas veronii biotype sobria have dragged major attention as foodborne pathogenic bacteria. The ability to elaborate a variety of virulence factors of Aeromonas spp. contributes to the pathogenic activities. Also, emerging antimicrobial resistance in Aeromonas spp. has become a huge challenge in seafood industry. Furthermore, multidrug resistance increases the risk of consumer health. Studies have supplied pieces of evidence about the emerging health risk of Aeromonas spp. isolated from seafood. Therefore, the present review was intended to highlight the prevalence, virulence and antimicrobial resistance of Aeromonas spp. isolated from various types of shellfish.
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Affiliation(s)
- L A D S De Silva
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - M V K S Wickramanayake
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - G-J Heo
- Veterinary Medical Center and College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
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8
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Fernández-Bravo A, Figueras MJ. An Update on the Genus Aeromonas: Taxonomy, Epidemiology, and Pathogenicity. Microorganisms 2020; 8:microorganisms8010129. [PMID: 31963469 PMCID: PMC7022790 DOI: 10.3390/microorganisms8010129] [Citation(s) in RCA: 268] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/10/2020] [Accepted: 01/14/2020] [Indexed: 02/07/2023] Open
Abstract
The genus Aeromonas belongs to the Aeromonadaceae family and comprises a group of Gram-negative bacteria widely distributed in aquatic environments, with some species able to cause disease in humans, fish, and other aquatic animals. However, bacteria of this genus are isolated from many other habitats, environments, and food products. The taxonomy of this genus is complex when phenotypic identification methods are used because such methods might not correctly identify all the species. On the other hand, molecular methods have proven very reliable, such as using the sequences of concatenated housekeeping genes like gyrB and rpoD or comparing the genomes with the type strains using a genomic index, such as the average nucleotide identity (ANI) or in silico DNA–DNA hybridization (isDDH). So far, 36 species have been described in the genus Aeromonas of which at least 19 are considered emerging pathogens to humans, causing a broad spectrum of infections. Having said that, when classifying 1852 strains that have been reported in various recent clinical cases, 95.4% were identified as only four species: Aeromonas caviae (37.26%), Aeromonas dhakensis (23.49%), Aeromonas veronii (21.54%), and Aeromonas hydrophila (13.07%). Since aeromonads were first associated with human disease, gastroenteritis, bacteremia, and wound infections have dominated. The literature shows that the pathogenic potential of Aeromonas is considered multifactorial and the presence of several virulence factors allows these bacteria to adhere, invade, and destroy the host cells, overcoming the immune host response. Based on current information about the ecology, epidemiology, and pathogenicity of the genus Aeromonas, we should assume that the infections these bacteria produce will remain a great health problem in the future. The ubiquitous distribution of these bacteria and the increasing elderly population, to whom these bacteria are an opportunistic pathogen, will facilitate this problem. In addition, using data from outbreak studies, it has been recognized that in cases of diarrhea, the infective dose of Aeromonas is relatively low. These poorly known bacteria should therefore be considered similarly as enteropathogens like Salmonella and Campylobacter.
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De Silva B, Hossain S, Dahanayake P, Heo GJ. Aeromonasspp. from marketed Yesso scallop (Patinopecten yessoensis): molecular characterization, phylogenetic analysis, virulence properties and antimicrobial susceptibility. J Appl Microbiol 2018; 126:288-299. [DOI: 10.1111/jam.14106] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/05/2018] [Accepted: 09/08/2018] [Indexed: 11/28/2022]
Affiliation(s)
- B.C.J. De Silva
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - S. Hossain
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - P.S. Dahanayake
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - G.-J. Heo
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
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10
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De Silva BCJ, Hossain S, Wimalasena SHMP, Pathirana HNKS, Heo GJ. Putative virulence traits and antibiogram profile ofAeromonasspp. isolated from frozen white-leg shrimp (Litopenaeus vannamei) marketed in Korea. J Food Saf 2018. [DOI: 10.1111/jfs.12470] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- B. C. J. De Silva
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - Sabrina Hossain
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - S. H. M. P. Wimalasena
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - H. N. K. S. Pathirana
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
| | - Gang-Joon Heo
- Veterinary Medical Center and College of Veterinary Medicine; Chungbuk National University; Cheongju Korea
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11
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Albarral V, Sanglas A, Palau M, Miñana-Galbis D, Fusté MC. Potential pathogenicity ofAeromonas hydrophilacomplex strains isolated from clinical, food, and environmental sources. Can J Microbiol 2016; 62:296-306. [DOI: 10.1139/cjm-2015-0466] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aeromonas are autochthonous inhabitants of aquatic environments, including chlorinated and polluted waters, although they can also be isolated from a wide variety of environmental and clinical sources. They cause infections in vertebrates and invertebrates and are considered to be an emerging pathogen in humans, producing intestinal and extra-intestinal diseases. Most of the clinical isolates correspond to A. hydrophila, A. caviae, and A. veronii bv. Sobria, which are described as the causative agents of wound infections, septicaemia, and meningitis in immunocompromised people, and diarrhoea and dysenteric infections in the elderly and children. The pathogenic factors associated with Aeromonas are multifactorial and involve structural components, siderophores, quorum-sensing mechanisms, secretion systems, extracellular enzymes, and exotoxins. In this study, we analysed a representative number of clinical and environmental strains belonging to the A. hydrophila species complex to evaluate their potential pathogenicity. We thereby detected their enzymatic activities and antibiotic susceptibility pattern and the presence of virulence genes (aer, alt, ast, and ascV). The notably high prevalence of these virulence factors, even in environmental strains, indicated a potential pathogenic capacity. Additionally, we determined the adhesion capacity and cytopathic effects of this group of strains in Caco-2 cells. Most of the strains exhibited adherence and caused complete lysis.
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Affiliation(s)
- Vicenta Albarral
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Avinguda Joan XXIII s/n, Barcelona 08028, Spain
| | - Ariadna Sanglas
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Avinguda Joan XXIII s/n, Barcelona 08028, Spain
| | - Montserrat Palau
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Avinguda Joan XXIII s/n, Barcelona 08028, Spain
| | - David Miñana-Galbis
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Avinguda Joan XXIII s/n, Barcelona 08028, Spain
| | - M. Carmen Fusté
- Departament de Microbiologia i Parasitologia Sanitàries, Facultat de Farmàcia, Universitat de Barcelona, Avinguda Joan XXIII s/n, Barcelona 08028, Spain
- Institut de Recerca de la Biodiversitat, Universitat de Barcelona, Avinguda Diagonal 643, Barcelona 08028, Spain
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12
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Metagenomic analysis of the bacterial microbiota linked to the traditional Algerian date product “Btana”. ANN MICROBIOL 2015. [DOI: 10.1007/s13213-015-1084-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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13
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Silva CM, Evangelista-Barreto NS, Vieira RHSDF, Mendonça KV, Sousa OVD. Population dynamics and antimicrobial susceptibility of Aeromonas spp. along a salinity gradient in an urban estuary in Northeastern Brazil. MARINE POLLUTION BULLETIN 2014; 89:96-101. [PMID: 25455376 DOI: 10.1016/j.marpolbul.2014.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 10/07/2014] [Accepted: 10/16/2014] [Indexed: 06/04/2023]
Abstract
The main objective of this study was to quantify population and identify culturable species of Aeromonas in sediment and surface water collected along a salinity gradient in an urban estuary in Northeastern Brazil. Thirty sediment samples and 30 water samples were collected from 3 sampling locations (A, B and C) between October 2007 and April 2008. The Aeromonas count was 10-7050CFU/mL (A), 25-38,500CFU/mL (B) and<10CFU/mL (C) for water samples, and ∼100-37,500CFU/g (A), 1200-43,500CFU/g (B) and<10CFU/g (C) for sediment samples. Five species (Aeromonas caviae, A. sobria, A. trota, A. salmonicida and A. allosaccharophila) were identified among 41 isolates. All strains were sensitive to chloramphenicol and ceftriaxone, whereas 33 (80, 4%) strains were resistant to at least 2 of the 9 antibiotics tested. Resistance to erythromycin was mostly plasmidial. In conclusion, due to pollution, the Cocó River is contaminated by pathogenic strains of Aeromonas spp. with a high incidence of antibacterial resistance, posing a serious risk to human health.
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Affiliation(s)
- Camila Magalhães Silva
- Federal University of Ceara, Pos-Graduate Program of Engineering of Fish, Av. Mister Hull, s/n, Campus do Pici, Bloco 848, 60021-970 Fortaleza, CE, Brazil.
| | - Norma Suely Evangelista-Barreto
- Federal University of Reconcavo Baiano CCAAB - Center for Research on Fisheries and Aquaculture (NEPA), Campus Universitário, 44380-000 Cruz das Almas, BA, Brazil
| | | | - Kamila Vieira Mendonça
- Institute of Marine Science, Av. da Abolição, 3207, Meireles, 60165-081 Fortaleza, CE, Brazil
| | - Oscarina Viana de Sousa
- Institute of Marine Science, Av. da Abolição, 3207, Meireles, 60165-081 Fortaleza, CE, Brazil
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Oliveira ST, Veneroni-Gouveia G, Costa MM. Molecular characterization of virulence factors in Aeromonas hydrophila obtained from fish. PESQUISA VETERINARIA BRASILEIRA 2012. [DOI: 10.1590/s0100-736x2012000800004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Multiple factors can be involved in the virulence processes of Aeromonas hydrophila. The objective of the present paper was to verify the presence of aerolysin, hidrolipase, elastase and lipase virulence genes through the polymerase chain reaction (PCR) in A. hydrophila isolates obtained from fish of the São Francisco River Valley, and to evaluate virulence according to the presence of these genes in Nile tilapia fingerlings. One hundred and fourteen isolates from the bacteria were used. DNA was heat extracted and PCR undertaken using specific primers described in the literature. For in vivo tests Nile tilapia fingerlings were used. From the PCR tests, negative isolates for all genes tested were selected, positive isolates for two genes (aerolysin and elastase) and positive for the four genes tested. These were inoculated at a concentration of 10(8) UFC/ml into the tilapias, considered as treatments; another group of animals was used as control (with inoculation of saline solution). In all, 12 distinct standards regarding the presence of virulence factors in isolates from A. hydrophila, were observed. Of the 114 isolates analyzed, 100 (87.72%) presented at least one of the virulence factors under study. The virulence factors were widely distributed among the A. hydrophila isolates. Aerolysin was the most frequent virulence factor present in the isolates analyzed. A. hydrophila led to the mortality of the Nile tilapia fingerlings, regardless of the absence or quantity of virulence genes tested.
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15
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Nagar V, Shashidhar R, Bandekar JR. Prevalence, Characterization, and Antimicrobial Resistance of Aeromonas Strains from Various Retail Food Products in Mumbai, India. J Food Sci 2011; 76:M486-92. [DOI: 10.1111/j.1750-3841.2011.02303.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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16
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Ottaviani D, Parlani C, Citterio B, Masini L, Leoni F, Canonico C, Sabatini L, Bruscolini F, Pianetti A. Putative virulence properties of Aeromonas strains isolated from food, environmental and clinical sources in Italy: A comparative study. Int J Food Microbiol 2011; 144:538-45. [DOI: 10.1016/j.ijfoodmicro.2010.11.020] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 11/09/2010] [Accepted: 11/10/2010] [Indexed: 11/17/2022]
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