scholarly journals Active surveillance of avian influenza virus in backyard birds in Egypt

2011 ◽  
Vol 20 (4) ◽  
pp. 584-588 ◽  
Author(s):  
E.F. El-Zoghby ◽  
E.M. Abdelwhab ◽  
A. Arafa ◽  
A.A. Selim ◽  
S.G. Kholousy ◽  
...  
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Avian Influenza Virus ◽  
Active Surveillance ◽  
Backyard Birds

scholarly journals Serological survey for avian influenza virus infection of backyard poultry and poultry workers in Baghdad and Basrah provinces, Iraq

2020 ◽  
Vol 23 (2) ◽  
pp. 187-196
Author(s):  
S. I. Jaber ◽  
H. T. Thwiny
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Avian Influenza Virus ◽  
Rural Areas ◽  
Influenza A ◽  
Influenza Virus Infection ◽  
Dry Land ◽  
Human Sera ◽  
Poultry Workers ◽  
Backyard Birds

The aim of this study was to determine the prevalence of avian influenza virus (AIV) subtype H5N1 among backyard birds and poultry workers. The study included backyard birds (chickens and ducks) in rural areas of Baghdad and Basrah provinces, Iraq. Rural areas were divided into wet land and dry land. Total egg samples were 368, divided into 184 eggs (92 chicken eggs and 92 duck eggs) from each province. The total number of human sera was 180 (45 poultry worker and 45 non-poultry worker samples from each province). Competitive ELISA tests were used for detection of specific antibodies against influenza A virus and influenza subtype H5N1 in all samples. Seroprevalence against AIV type A in chickens was 62.5% (115/184) while ducks showed seroprevalence of 40.8% (75/184). The seropositivity among the backyard birds in wet land rural areas was higher than that in dry land rural areas. The samples positive for subtype H5N1 in chickens were 15.7% (18/115) while in ducks: 12% (9/75) with highest seropositivity among chickens in wet land rural areas (18.8%; 12/64). The seropositivity of avian influenza H5N1 was 6% (4/67) among AIV-positive poultry workers and 2.9% (1/34) among non-poultry workers.

scholarly journals Active Surveillance for Avian Influenza Virus, Egypt, 2010–2012

2014 ◽  
Vol 20 (4) ◽  
pp. 542-551 ◽  
Author(s):  
Ghazi Kayali ◽  
Ahmed Kandeil ◽  
Rabeh El-Shesheny ◽  
Ahmed S. Kayed ◽  
Mokhtar M. Gomaa ◽  
...  
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Avian Influenza Virus ◽  
Active Surveillance

scholarly journals Reassortant Highly Pathogenic H5N6 Avian Influenza Virus Containing Low Pathogenic Viral Genes in a Local Live Poultry Market, Vietnam

2021 ◽  
Author(s):  
Tran Bac Le ◽  
Van Phan Le ◽  
Ji-Eun Lee ◽  
Jung-Ah Kang ◽  
Thi Bich Ngoc Trinh ◽  
...  
Keyword(s):  
Influenza Virus ◽  
Avian Influenza ◽  
Avian Influenza Virus ◽  
Active Surveillance ◽  
Hot Spots ◽  
Animal Health ◽  
Highly Pathogenic ◽  
Sequence Identity ◽  
Viral Genes ◽  
Live Poultry

AbstractSites of live poultry trade and marketing are hot spots for avian influenza virus (AIV) transmission. We conducted active surveillance at a local live poultry market (LPM) in northern Vietnamese provinces in December 2016. Feces samples from the market were collected and tested for AIV. A new reassorted AIV strain was isolated from female chickens, named A/chicken/Vietnam/AI-1606/2016 (H5N6), and was found to belong to group C of clade 2.3.4.4 H5N6 highly pathogenic (HP) AIVs. The neuraminidase gene belongs to the reassortant B type. The viral genome also contained polymerase basic 2 and polymerase acidic, which were most closely related to domestic-duck-origin low pathogenic AIVs in Japan (H3N8) and Mongolia (H4N6). The other six genes were most closely related to poultry-origin H5N6 HP AIVs in Vietnam and had over 97% sequence identity with human AIV isolate A/Guangzhou/39715/2014 (H5N6). The new reassorted AIV isolate A/chicken/Vietnam/AI-1606/2016 (H5N6) identified in this study exemplifies AIVs reassortment and evolution through contact among wild birds, poultry farms, and LPMs. Therefore, active surveillance of AIVs is necessary to prevent potential threats to human and animal health.

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