scholarly journals The pathogenicity and transmission of live bird market H2N2 avian influenza viruses in chickens, Pekin ducks, and guinea fowl

2021 ◽  
pp. 109180
Author(s):  
Jongseo Mo ◽  
Sungsu Youk ◽  
Mary J. Pantin-Jackwood ◽  
David L. Suarez ◽  
Dong-Hun Lee ◽  
...  
2020 ◽  
Vol 7 (5) ◽  
Author(s):  
Xinye Wang ◽  
Emily S Bailey ◽  
Xian Qi ◽  
Huiyan Yu ◽  
Changjun Bao ◽  
...  

From October to December 2018, periodic bioaerosol sampling was conducted at a live bird market in Kunshan, China. Sixty-six (55%) of 120 samples had molecular evidence of avian influenza viruses. Four yielded live H9N2 virus after egg culture.


2019 ◽  
Vol 13 (4) ◽  
pp. 407-414 ◽  
Author(s):  
Ahmed S. Kayed ◽  
Ahmed Kandeil ◽  
Mokhtar R. Gomaa ◽  
Rabeh El‐Shesheny ◽  
Sara Mahmoud ◽  
...  

2015 ◽  
Vol 5 (5) ◽  
pp. 369-373 ◽  
Author(s):  
Comfort Oluladun Aiki-Raji ◽  
Adebowale Idris Adebiyi ◽  
Victor Ibukun Agbajelola ◽  
Shakirat Adeola Adetunji ◽  
Quadri Lameed ◽  
...  

2019 ◽  
Vol 4 (3) ◽  
pp. 119 ◽  
Author(s):  
Rimi ◽  
Hassan ◽  
Chowdhury ◽  
Rahman ◽  
Sultana ◽  
...  

Highly pathogenic avian influenza (HPAI) has been a public health threat in Bangladesh since the first reported outbreak in poultry in 2007. The country has undertaken numerous efforts to detect, track, and combat avian influenza viruses (AIVs). The predominant genotype of the H5N1 viruses is clade 2.3.2.1a. The persistent changing of clades of the circulating H5N1 strains suggests probable mutations that might have been occurring over time. Surveillance has provided evidence that the virus has persistently prevailed in all sectors and caused discontinuous infections. The presence of AIV in live bird markets has been detected persistently. Weak biosecurity in the poultry sector is linked with resource limitation, low risk perception, and short-term sporadic interventions. Controlling avian influenza necessitates a concerted multi-sector ‘One Health’ approach that includes the government and key stakeholders.


2012 ◽  
Vol 7 (4) ◽  
pp. 513-520 ◽  
Author(s):  
Yogesh Chander ◽  
Naresh Jindal ◽  
Srinand Sreevatsan ◽  
David E. Stallknecht ◽  
Sagar M. Goyal

2003 ◽  
Vol 77 (24) ◽  
pp. 13399-13402 ◽  
Author(s):  
Erica Spackman ◽  
Dennis A. Senne ◽  
Sherrill Davison ◽  
David L. Suarez

ABSTRACT The hemagglutinin (HA) and neuraminidase (NA) genes of H7 avian influenza virus (AIV) isolated between 1994 and 2002 from live-bird markets (LBMs) in the northeastern United States and from three outbreaks in commercial poultry have been characterized. Phylogenetic analysis of the HA and NA genes demonstrates that the isolates from commercial poultry were closely related to the viruses circulating in the LBMs. Also, since 1994, two distinguishing genetic features have appeared in this AIV lineage: a deletion of 17 amino acids in the NA protein stalk region and a deletion of 8 amino acids in the HA1 protein which is putatively in part of the receptor binding site. Furthermore, analysis of the HA cleavage site amino acid sequence, a marker for pathogenicity in chickens and turkeys, shows a progression toward a cleavage site sequence that fulfills the molecular criteria for highly pathogenic AIV.


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