Isolation of &lt;i&gt;Mannheimia (Pasteurella) haemolytica&lt;/i&gt; serotypes A2 and A12 from clinically ill and dead chickens: a case report

Antiabong, JF; Haruna, ES; Owolodun, J; Yakubu, Bitrus; Odugbo, M. O.; Suleiman, Ibrahim Eleha; Ekundayo, S; Dalyop, P

doi:10.4314/tv.v23i2.4572

Cited by 3 publications

(4 citation statements)

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“…While common knowledge in virology associates coinfections with a virus coming first followed by a bacterium, the timing in the field may actually be opposite with commensal bacteria that are there first and may become a problem when a virus superinfects the birds (14). Manheimia haemolytica, Gallibacterium anatis, and Pseudomonas aeruginosa have indeed been identified as commensal bacteria of the upper respiratory tract of poultry, while they may also be found in sick birds either in the presence of a coinfecting pathogen or in difficult environmental conditions (3,5,48,71). In chickens, to avoid interference with other pathogens and in an attempt to ''standardize'' experiments, researchers usually inoculate SPF birds.…”

Section: Timing Of Coinfectionsmentioning

confidence: 99%

Low Pathogenic Avian Influenza and Coinfecting Pathogens: A Review of Experimental Infections in Avian Models

2017

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Section: Timing Of Coinfectionsmentioning

confidence: 99%

Low Pathogenic Avian Influenza and Coinfecting Pathogens: A Review of Experimental Infections in Avian Models

2017

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“…Также описаны случаи индикации возбудителя от не типичных видов животных: кролики, свиньи, собаки, кошки. В Южной Африке от овец и коз часто выделяются серотипы А6, А9 и А2 [37], серотипы А2 и А12 от клинически здоровой птицы [38]. Выделение серотипов P. trehalosi характерно от мелкого рогатого скота, особенно старых овец [39].…”

Section: вид животногоunclassified

Pasteurellosis of Cattle Caused by Mannheimia Haemolytica

Kapustin¹,

Laishevtcev²

2016

RJOAS

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В работе обобщены научные данные о болезнях животных, вызываемых бактериями рода Pasteurella, в том числе Mannheimia haemolytica. В зарубежной литературе инфекционное заболевание вызванное возбудителем Mannheimia haemolytica называется Mannheimiosis -манхеймиоз. Микроорганизмы указанного рода часто проявляется лишь при наличии первичного патогенного агента, либо стресс фактора, что затрудняет диагностику и своевременную профилактику болезни. Использование рутинных методов индикации микроорганизмов не всегда позволяет достичь достоверного результата, ввиду сложности их выполнения. Современные экспрессметоды индикации способны произвести существенный сдвиг в плане выявления неблагополучных по манхеймиозу животноводческих предприятий, но для этого необходим высокий уровень оснащения диагностических лабораторий и наличие высококвалифицированных кадров.

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“…Bacterial pathogens may play a primary or secondary role in diseases. Usually, primary viral or environmental damage to respiratory tissue attract bacteria to colonize the respiratory system (Antiabong et al, 2005;Ashraf et al, 2011;Simon et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…M. haemolytica has been identified as causative agent of severe respiratory tract problems in cattle, sheep and goat but it is usually found as a secondary or co-pathogen in poultry along with other RESEARCH ARTICLE respiratory pathogens. Although it has been reported from chicken in Nigeria and Pakistan (Antiabong et al, 2005;Ali et al, 2015) but its role as a primary pathogen is not well studied in chicken. Following study investigates and presents the isolation of M. haemolytica bacterium from 52-wk-old, layer hen presenting characteristic clinical signs of fowl cholera.…”

Section: Introductionmentioning

confidence: 99%

Isolation of Mannheimia haemolytica from Layer Hens Showing Respiratory Signs

Umar¹

2018

PVJ

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Mannheimia haemolytica (M. haemolytica) causes shipping fever and several other respiratory diseases in bovine but its involvement in diseases of Gallus gallus domesticus is limited to secondary infections with limited data available from Pakistan. Samples from layer hens showing respiratory clinical signs were processed for isolation and identification of causative agent through biochemical and molecular tests and the isolates were further tested for pathogenicity index. Phylogenetic studies were also done to establish the phylogeny of circulating species. Our study led to the isolation of a Gram-negative, non-motile, coccobacillus from the clinical samples and was identified as M. haemolytica which showed 99% homology with the M. haemolytica serotype A2 of bovine origin upon sequencing of its 16S rDNA gene. A single, smooth colony of this bacterium inoculated in five, 7-day-old embryonated eggs via the yolk sac route induced hemorrhages and 100% mortality. These results were further supported by the recovery of bacterium M. haemolytica from 8 week-old layer hens showing mild clinical signs within 1-week post challenge with the isolate. Our study provides evidence that M. haemolytica may cause clinical disease in Gallus gallus domesticus under stressful conditions and adds to the existing knowledge for differential diagnosis of respiratory pathogens in poultry.

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Isolation of <i>Mannheimia (Pasteurella) haemolytica</i> serotypes A2 and A12 from clinically ill and dead chickens: a case report

Cited by 3 publications

References 0 publications

Low Pathogenic Avian Influenza and Coinfecting Pathogens: A Review of Experimental Infections in Avian Models

Low Pathogenic Avian Influenza and Coinfecting Pathogens: A Review of Experimental Infections in Avian Models

Pasteurellosis of Cattle Caused by Mannheimia Haemolytica

Isolation of Mannheimia haemolytica from Layer Hens Showing Respiratory Signs

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