An Asian Origin of Virulent Aeromonas hydrophila Responsible for Disease Epidemics in United States-Farmed Catfish

Hossain, M. Jahangir; Sun, Dawei; McGarey, Donald J.; Wrenn, Shannon; Alexander, Laura M.; Martino, Maria Elena; Xing, Yongzhong; Terhune, Jeffery S.; Liles, Mark R.

doi:10.1128/mbio.00848-14

Cited by 124 publications

(119 citation statements)

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“…For Hossain et al. (), MAS outbreaks occurred in the south‐eastern of the United States have been responsible for losses of around 12 million dollars in the channel catfish aquaculture. In China, outbreaks of MAS in farmed carp are responsible for losses exceeding five billion yuan per year (Rasmussen‐Ivey, Figueras, McGarey, & Liles, ; Rasmussen‐Ivey, Hossain et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…This worldwide distributed disease is one of the most significant pathologies for freshwater cultured fishes (Cipriano, 2001), and losses due to motile aeromonads infections in fish farms can be enormous. For Hossain et al (2014), MAS outbreaks occurred in the south-eastern of the United States have been responsible for losses of around 12 million dollars in the channel catfish aquaculture. In China, outbreaks of MAS in farmed carp are responsible for losses exceeding five billion yuan per year (Rasmussen-Ivey, Figueras, McGarey, & Liles, 2016;Rasmussen-Ivey, Hossain et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Phenotypic, molecular and pathological characterization of motile aeromonads isolated from diseased fishes cultured in Uruguay

Perretta

Antúnez

Zunino

2018

Journal of Fish Diseases

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Information about motile aeromonads from aquaculture systems of the Neotropical region is scarce. The aim of this study was to characterize motile Aeromonas isolated from ornamental and consumable fishes cultured in Uruguay. Biochemical and molecular methods were used for species identification. Antimicrobial susceptibility and the presence of virulence genes were evaluated. Genetic diversity was analysed by rep-PCR, and virulence of the most representative isolates was determined by calculating the fifty lethal dose in experimentally challenged fish (Australoheros facetus). Aeromonas hydrophila and A. veronii were the most prevalent identified species (38.2% and 32.4%, respectively), whereas A. allosacharophila, A. bestiarium, A. caviae and A. punctata were less prevalent. This study constitutes the first report of these last four species in Uruguay. All isolates were resistant to at least three antimicrobials, and 82.3% of them showed multidrug resistance. Virulence genotypes were correlated with the Aeromonas species and haemolytic activity. The genotype act+/alt+/ast+/ela+/lip+ was the most prevalent (26.5%). A correlation between virulence genotypes and Aeromonas species was found. A. punctata showed a clonal structure according to rep-PCR analysis, whereas other species showed high genetic diversity. The number of virulence genes of the isolates was related with virulence according to the experimental challenge assays.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenotypic, molecular and pathological characterization of motile aeromonads isolated from diseased fishes cultured in Uruguay

Perretta

Antúnez

Zunino

2018

Journal of Fish Diseases

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“…Not only does the disease affect catfish and the food supply chain but also humans. Human infections are being realised by the contamination of the aquatic farm products like catfish and oysters (Hossain et al, 2014;Nikiforov et al, 2014).…”

Section: Contaminated Us Catfishmentioning

confidence: 99%

The complexity of the international food industry

McDowell¹

2017

IJSSS

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Abstract:The international food industry is a complex and intertwined system of actions and re-actions covering many areas. Multiple concepts presented by scholarly literature are examined emphasising the vastness and complexity of international trade activities conducted by multiple nations with multiple resources. Research and discussions concerning the international food industry include religions, health, nutritional, moral, political and economic characteristics when examining the complexity of the international food industry. Variations in how different countries, different cultures and religious beliefs, different health and safety standards, and different business practices interact with each other in the international food industry are analysed. How international food industries are influenced by complex issues of cultural and religious processing requirements, food safety, food crimes, and governmental economic negotiations are examined through qualitative and empirical analysis. Game Theory and internal controls used in fraud detection is examined for further research supporting strategic moves of international trade participants.

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“…It has been confirmed as one of the main bacteria causing infectious diseases in freshwater aquatic animals (Peng, Na, Yong-jie & Cheng-ping, 2014). Reportedly, the infection has been widely distributed throughout the world's aquaculture industry, including: the United States (Hossain et al, 2014), the Middle East (SamCookiyaei et al, 2012), Africa (Almaw et al, 2014), Europe (Jiravanichpaisal, Roos, Edsman, Liu & S€ oderh€ all, 2009) and Asian countries (Nielsen et al, 2001). The infected fish show gross clinical signs of haemorrhagic septicaemia that are sometimes referred to as motile aeromonas septicaemia (Austin, 2011) or epizootic ulcerative syndrome (Boonyaratpalin, 1987).…”

mentioning

confidence: 99%

The in vitro efficacy of oxytetracycline against re-isolated pathogenicAeromonas hydrophilacarrying the cytolytic enterotoxin gene through hybrid catfish,Clarias macrocephalus(Günther, 1864) ×Clarias gariepinus(Burchell, 1822) in Thailand

et al. 2018

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Aeromonas hydrophila is a pathogen infecting farmed hybrid catfish, Clarias macrocephalus (Günther, 1864) × Clarias gariepinus (Burchell, 1822) which incurs substantial economic losses in Thailand. The study aimed at a genetic tracking of A. hydrophila infection and the in vitro assessment of the efficacy of antibiotics against its virulent strains. Five clinical strains from catfishes and Nile tilapia were employed. They were 3‐passage re‐isolated through healthy hybrid catfish and the cytolytic enterotoxin gene (AHCYTOEN) of individuals was traced. Each of the re‐isolates at a dose of ~6.67 × 105 CFU/g was intraperitoneally injected into ~15 g‐healthy hybrid catfish and their pathogenicity were observed for 7 days. It was found that AHCYTOEN was carried over whereas typical signs of motile aeromonas septicaemia were found in the specimens. The bacterial strains of Nile tilapia origin did not induce mortality but those of catfish origins (80%–100% rate of mortality). The strains were susceptible to the tetracycline antibiotics, and oxytetracycline produced MIC50 and MBC as low as 0.007–0.031 μg/ml and 1–8 μg/ml respectively. As oxytetracycline specifically inhibited pathogenic A. hydrophila in vitro, it is recommended that an appropriate dosage regimen of the drug should be established.

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An Asian Origin of Virulent Aeromonas hydrophila Responsible for Disease Epidemics in United States-Farmed Catfish

Cited by 124 publications

References 24 publications

Phenotypic, molecular and pathological characterization of motile aeromonads isolated from diseased fishes cultured in Uruguay

Phenotypic, molecular and pathological characterization of motile aeromonads isolated from diseased fishes cultured in Uruguay

The complexity of the international food industry

The in vitro efficacy of oxytetracycline against re-isolated pathogenicAeromonas hydrophilacarrying the cytolytic enterotoxin gene through hybrid catfish,Clarias macrocephalus(Günther, 1864) ×Clarias gariepinus(Burchell, 1822) in Thailand

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