The pathogenicity of three Australian fowl plague viruses for chickens, turkeys and ducks

Westbury, H. A.; Turner, Andrew; Kovesdy, L.

doi:10.1016/0378-1135(79)90058-0

Cited by 41 publications

(37 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Narayan et al (1969) using ty/Ont showed that this virus was less transmissible in chickens than turkeys. In a study with H7 viruses Alexander et al (1978) reported that viruses did not spread as well between ducks as chickens and turkeys, but Westbury et al (1979) reached the opposite conclusion. Age of birds, stocking densities, room sizes and air changes may well affect transmission results and account for different results in different laboratories.…”

Section: Assessment Of Resultsmentioning

confidence: 95%

Experimental assessment of the pathogenicity of eight avian influenza a viruses of H5 subtype for chickens, turkeys, ducks and quail

1986

View full text Add to dashboard Cite

Section: Assessment Of Resultsmentioning

confidence: 95%

Experimental assessment of the pathogenicity of eight avian influenza a viruses of H5 subtype for chickens, turkeys, ducks and quail

1986

View full text Add to dashboard Cite

“…Avian influenza virus isolates known to be highly pathogenic in chickens and turkeys have been consistently found to be of lower pathogenicity or completely apathogenic in ducks (Alexander et al, 1978;Westbury et al, 1979;Alexander et al, 1986;Murphy, 1986;Cooley et al, 1989). It is known that, in chickens, viruses with multiple basic amino acids at the haemagglutinin cleavage site which are, therefore, cleavable by proteases ubiquitously present in the body, may spread to and damage organs and tissues other than the intestinal and respiratory tracts (Rott et al, 1987) and that this systemic spread correlates with high pathogenicity.…”

Section: Introductionmentioning

confidence: 99%

Replication of influenza A viruses of high and low pathogenicity for chickens at different sites in chickens and ducks following intranasal inoculation

1995

View full text Add to dashboard Cite

SUMMARYTen specific pathogen free light breed chickens and 10 commercial layer ducks were inoculated intranasally with one of five avian influenza A viruses which had been characterised as showing high or low pathogenicity for chickens. Recovery of the two viruses of low pathogenicity was restricted to the respiratory tract and gut of both species. Highly pathogenic viruses were recovered from all organs sampled. With two of the highly pathogenic viruses, A/duck/Ireland/113/83 (H5N8) and A/chicken/Victoria/85 (H7N7), the sites of recovery in ducks were similar to those seen in chickens except that virus was absent from the brain, apart from low levels detected in brain samples taken on day 5 from ducks infected with A/duck/Ireland/113/83. The levels recovered from organs of ducks for these two viruses were also similar to those in chickens, except for lower levels in kidney and liver for ducks infected with A/chicken/Victoria/85, and a delayed peak of recovery of both viruses in ducks. The third.highly pathogenic virus, A/turkey/England/50-92/91 (H5N1), could not be recovered from any site in ducks. For all three highly pathogenic viruses mortality and morbidity were rapid and complete in chickens but absent in ducks.

show abstract

“…In most experimental studies, ducks intranasally (i.n.) inoculated with H5 or H7 HPAI viruses showed very mild or no clinical signs (40,(43)(44)(45)(46)(47)(48), but virus was isolated in some cases from tracheal and cloacal swabs (44,47,48) and recovered from the trachea, gut, liver, brain, and spleen (40). Based on the results of these studies, it is not clear whether domestic or wild ducks can easily become infected with HPAI viruses other than the Gs/GD lineage and transmit the virus to naive ducks.…”

mentioning

confidence: 99%

Pathogenicity and Transmission of H5 and H7 Highly Pathogenic Avian Influenza Viruses in Mallards

Pantin‐Jackwood

Costa-Hurtado

Shepherd

et al. 2016

J Virol

106

View full text Add to dashboard Cite

IMPORTANCEThe spread of H5 subtype highly pathogenic avian influenza (HPAI) viruses of the Gs/GD lineage by migratory waterfowl is a serious concern for animal and public health. H5 and H7 HPAI viruses are considered to be adapted to gallinaceous species (chickens, turkeys, quail, etc.) and less likely to infect and transmit in wild ducks. In order to understand why this is different with certain Gs/GD lineage H5 HPAI viruses, we compared the pathogenicity and transmission of several H5 and H7 HPAI viruses from previous poultry outbreaks to Gs/GD lineage H5 viruses, including H5N1 (clade 2.2), H5N8 and H5N2 (clade 2.3.4.4) viruses, in mallards as a representative wild duck species. Surprisingly, most HPAI viruses examined in this study replicated well and transmitted among mallards; however, the three Gs/GD lineage H5 HPAI viruses replicated to higher titers, which could explain the transmission of these viruses in susceptible wild duck populations.

show abstract

The pathogenicity of three Australian fowl plague viruses for chickens, turkeys and ducks

Cited by 41 publications

References 4 publications

Experimental assessment of the pathogenicity of eight avian influenza a viruses of H5 subtype for chickens, turkeys, ducks and quail

Experimental assessment of the pathogenicity of eight avian influenza a viruses of H5 subtype for chickens, turkeys, ducks and quail

Replication of influenza A viruses of high and low pathogenicity for chickens at different sites in chickens and ducks following intranasal inoculation

Pathogenicity and Transmission of H5 and H7 Highly Pathogenic Avian Influenza Viruses in Mallards

Contact Info

Product

Resources

About