Pathogenesis of<i>Riemerella anatipestifer</i>in turkeys after experimental mono-infection via respiratory routes or dual infection together with the avian metapneumovirus

Rubbenstroth, Dennis; Ryll, M.; Behr, Klaus-Peter; Rautenschlein, Silke

doi:10.1080/03079450903349220

Cited by 30 publications

(25 citation statements)

References 44 publications

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“…Presumably, the difference in pathogenicity between laboratory and field infections is related to the conditions under which the birds are kept and the presence or absence of exacerbative organisms. In laboratory studies concurrent infection of turkey poults with aMPV and respiratory bacteria, such as E coli, Bordetella avium and Riemerella anatipestifer (22,24) and low virulent (lentogenic) Newcastle disease virus (25), significantly exacerbate and prolong clinical signs and morbidity.…”

Section: Resultsmentioning

confidence: 99%

The Role Of Avian Metapenumovirus In Respiratory Complex Disease Circulating In Broilers In Northern Iran

Seifi¹,

Boroomand²

2015

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Avian metapneumovirus (aMPV) is the etiologic agent of a respiratory disease of poultry. In a 6 months period from October 2012 to March 2013, broiler flocks with respiratory signs are examined in northern Iran. The purpose of the given research was to define presence of antibodies of the birds' avian metapneumovirus among broilers and detection of virus. Birds were not vaccinated against this virus.Total 525 blood samples and trachea/nasal turbinates swabs were obtained from 35 commercial broiler flocks and pooled (5 swabs/pool), then RT-PCR method was done on these 105 pooled samples. Presence of antibodies against the bird's metapneumovirus in each serum sample has been tested by method of immune-enzyme analysis. 10 (28.5%) flocks had positive antibodies. Of the 35 flocks, 8 were positive by RT-PCR with Nd/Nx primers (23%). This is the first report of APV infection in northern Iran. Vaccination programs should be adjusted to include the APV vaccine to aid in the control of this respiratory disease in the Iranian poultry industry.

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Section: Resultsmentioning

confidence: 99%

The Role Of Avian Metapenumovirus In Respiratory Complex Disease Circulating In Broilers In Northern Iran

Seifi¹,

Boroomand²

2015

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“…Infected birds are characterized by respiratory symptoms, septicemia, pericarditis, perihepatitis, meningitis, and salpingitis (Sandhu 2008). The bacterium is distributed worldwide and is an important cause of infectious disease among waterfowl, turkeys, and chickens (Sandhu 2008;Rubbenstroth et al 2009;Li et al 2011). It has also been isolated from wild birds, including wild ducks (Anatidae), geese (Anatidae), black swans (Cygnus atratus), pheasants (Phasianidae), guinea fowl (Numididae), quail (Galliformes), guillemot (Uria aalge), and gulls (Laridae) (Bruner et al 1970;Eleazer et al 1973;Pierce and Vorhies 1973;Hinz et al 1998;Sandhu 2008).…”

Section: Introductionmentioning

confidence: 99%

SURVEILLANCE AND CHARACTERIZATION OF RIEMERELLA ANATIPESTIFER FROM WILD BIRDS IN SOUTH KOREA

Cha

Seo

Wei

et al. 2015

Journal of Wildlife Diseases

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ABSTRACT:We conducted surveillance for Riemerella anatipestifer (RA) Thirty-three RA isolates obtained and examined were highly resistant to aminoglycosides: kanamycin (100%), gentamicin (94%), amikacin (91%), neomycin (88%), and streptomycin (82%). Six isolates were identified as serotype 4 by agar gel precipitation. Serotypes 1 and 7, which are known virulent serotypes, were also identified in three isolates from wild duck species.

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“…4,5 In addition, gallinaceous birds, particularly turkeys and pigeons, may also be infected. 6 RA infection is mostly found in the heart, brain, air sacs, bone marrow, lungs, and liver of ducklings and the bacterium is thought to enter through the respiratory tract or skin punctures. 6,7 RAinduced gross pathology is dominated by polyserositis, resulting in¯brinous exudates in the pericardium and the surface of liver.…”

Section: Introductionmentioning

confidence: 99%

“…6 RA infection is mostly found in the heart, brain, air sacs, bone marrow, lungs, and liver of ducklings and the bacterium is thought to enter through the respiratory tract or skin punctures. 6,7 RAinduced gross pathology is dominated by polyserositis, resulting in¯brinous exudates in the pericardium and the surface of liver. Fibrinous airsacculitis and meningitis are also frequently found.…”

Section: Introductionmentioning

confidence: 99%

SURVEY OF ARIEMERELLA ANATIPESTIFEROUTBREAK IN SOUTHERN TAIWAN DUCK FARMS

et al. 2017

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A septicemic outbreak in southern Taiwan duck farms in 2014 resulted in high mortality of ducklings. Samples from oral or cloacal sites of a®ected Muscovy and Pekin ducks were collected and the identity of the¯eld isolates was con¯rmed using Riemerella anatipestifer (RA) 16S rRNA and outer membrane protein A (OmpA)-speci¯c primers in polymerase chain reactions (PCR), with 15 isolates found positive for both 16S rRNA and OmpA. Detection of both the 16S rRNA and OmpA genes could be a rapid PCR test for RA. Serotyping of the isolates using gel-di®usion precipitin test identi¯ed serotypes 1, 4, 6, 17, and 19 while a number of isolates were unidenti¯able. Sequence analysis of the OmpA gene found high identity (99.0-99.7%) among isolates in Taiwan. These results indicate that RA remains as a signi¯cant cause of duck septicemic disease in southern Taiwan.

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Pathogenesis ofRiemerella anatipestiferin turkeys after experimental mono-infection via respiratory routes or dual infection together with the avian metapneumovirus

Cited by 30 publications

References 44 publications

The Role Of Avian Metapenumovirus In Respiratory Complex Disease Circulating In Broilers In Northern Iran

The Role Of Avian Metapenumovirus In Respiratory Complex Disease Circulating In Broilers In Northern Iran

SURVEILLANCE AND CHARACTERIZATION OF RIEMERELLA ANATIPESTIFER FROM WILD BIRDS IN SOUTH KOREA

SURVEY OF ARIEMERELLA ANATIPESTIFEROUTBREAK IN SOUTHERN TAIWAN DUCK FARMS

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