Riemerella anatipestifer infection

Behboudi, Shahriar

doi:10.1079/cabicompendium.66183

Cited by 2 publications

(5 citation statements)

References 61 publications

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“…Riemerella anatipestifer (R. anatipestifer) is a Gram-negative, non-sporulating rod occurring singly, in pairs, and occasionally in chains, without cilia, bipolar staining bacterium which is responsible for infections in birds involving fibrinous exudative serositis and particularly affects the pericardial sac, air sacs, and liver [1,2]. The cells vary from 0.2 to 0.4 mm in width and 1 to 5 mm in length [2]. Colonies on blood agar are 1-2 mm in diameter, greyish, convex, dew drop-like, and smooth.…”

Section: Introductionmentioning

confidence: 99%

“…Septicaemia anserum exsudativa, caused by R. anatipestifer, is a disease common in many Asian countries with intensive rearing of ducks and geese [7][8][9]. The infection affects young birds, especially those at 1 to 8 weeks of age [2]. In addition to waterfowl, other species of birds can be susceptible to infection, including Galliformes, with the highest susceptibility observed in turkeys [10].…”

Section: Introductionmentioning

confidence: 99%

“…Most strains of R. anatipestifer are susceptible to amoxicillin, enrofloxacin, chloramphenicol, and ceftiofur. More than 90% of the strains are resistant to aminoglicosides and antibiotics from the polymyxin group [2,11]. It can be observed that the number of manuscripts describing R. anatipestifer infections in European countries has increased in the last two decades [1,10,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Riemerella anatipestifer Strains Isolated from Various Poultry Species in Poland

Nowaczek,

Dec,

Stępień-Pyśniak

et al. 2023

Antibiotics

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Riemerella anatipestifer (R. anatipestifer) is one of the common pathogens found in poultry flocks, resulting in serious economic losses for the poultry industry due to high mortality, reduced growth rate, poor feed conversion, increased condemnations, and high treatment costs. The aim of this study was to phenotypically characterize phylogenetic relationships and assess the presence of resistance gene strains of R. anatipestifer obtained from various poultry species in Poland. A total of 57 isolates of Riemerella were included in this study. A polymerase chain reaction (PCR) and matrix assisted laser desorption ionization mass spectrometry (MALDI-TOF MS) were used for identification of the strains. The phylogenetic relationship of the R. anatipestifer isolates was determined by analysing the rpoB gene sequence. The susceptibility to antibiotics was evaluated by minimum inhibitory concentration (MIC) in liquid media. All of the field strains of R. anatipestifer were grouped into one of two clades resulting from rpoB gene sequencing. High MIC50 and MIC90 values were obtained for gentamycin, amikacin, and colistin. Low MIC50 and MIC90 values were obtained for amoxicillin cefuroxime, cefoperazone, piperacillin, and trimethoprim/sulfamethoxazole. Among the resistance genes, tet(X) and ermF were identified most frequently. This is the first phenotypic characterization of R. anatipestifer strains obtained from poultry flocks in Poland.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization of Riemerella anatipestifer Strains Isolated from Various Poultry Species in Poland

Nowaczek,

Dec,

Stępień-Pyśniak

et al. 2023

Antibiotics

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“…Riemerella (R.) anatipestifer, a member of the Flavobacteriaceae family, causes the condition known as riemerellosis, characterized by acute to chronic septicemia. While its primary hosts are domestic ducks and geese, susceptibility to R. anatipestifer infection extends to other avian species, such as chickens [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Inflammation is a pathophysiological consequence of riemerellosis, resulting in characteristic pathognomonic signs in avian species, including fibrinous meningitis, pleural effusion, and exudative infiltrates in air sacs and the liver [2]. In many inflammatory disorders, NOS2 and CCL5 are upregulated, promoting the synthesis of IL-6 and IL-8.…”

Section: Introductionmentioning

confidence: 99%

Promotion of Th1 and Th2 responses over Th17 in Riemerella anatipestifer stimulation in chicken splenocytes: Correlation of gga-miR-456-3p and gga-miR-16-5p with NOS2 and CCL5 expression

Cammayo-Fletcher,

Flores,

Nguyen

et al. 2023

PLoS ONE

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Riemerella (R.) anatipestifer poses a significant threat to ducks, resulting in mortality rates ranging from 5–75%. This disease is highly infectious and economically consequential for domestic ducks. Although other avian species, such as chickens, also display susceptibility, the impact is comparatively less severe than in ducks. IL-17A has a pronounced correlation with R. anatipestifer infection in ducks, which is less in chickens. This study performed an in vitro transcriptome analysis using chicken splenic lymphocytes collected at 4-, 8-, and 24-hour intervals following R. anatipestifer stimulation. The primary objective was to discern the differentially expressed genes, with a specific focus on IL-17A and IL-17F expression. Moreover, an association between specific miRNAs with NOS2 and CCL5 was identified. The manifestation of riemerellosis in chickens was linked to heightened expression of Th1- and Th2-associated cells, while Th17 cells exhibited minimal involvement. This study elucidated the mechanism behind the absence of a Th17 immune response, shedding light on its role throughout disease progression. Additionally, through small RNA sequencing, we identified a connection between miRNAs, specifically miR-456-3p and miR-16-5p, and their respective target genes NOS2 and CCL5. These miRNAs are potential regulators of the inflammatory process during riemerellosis in chickens.

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Riemerella anatipestifer infection

Abstract: This datasheet on Riemerella anatipestifer infection covers Identity, Overview, Associated Diseases, Pests or Pathogens, Distribution, Hosts/Species Affected, Diagnosis, Pathology, Epidemiology, Impacts, Prevention/Control, Further Information.

Cited by 2 publications

References 61 publications

Characterization of Riemerella anatipestifer Strains Isolated from Various Poultry Species in Poland

Characterization of Riemerella anatipestifer Strains Isolated from Various Poultry Species in Poland

Promotion of Th1 and Th2 responses over Th17 in Riemerella anatipestifer stimulation in chicken splenocytes: Correlation of gga-miR-456-3p and gga-miR-16-5p with NOS2 and CCL5 expression

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