Results 21 to 30 of about 1,233,471 (209)

Vertical Transmission of H9N2 Avian Influenza Virus in Goose [PDF]

Frontiers in Microbiology, 2017
During a study on high mortality cases of goose embryo in Shandong Province, China (2014-2015), we isolated an H9N2 avian influenza virus (AIV) strain (A/goose/Shandong/DP01/2014, DP01), which was supposedly the causative agent for goose embryo death.
Guanliu Yu, Guanliu Yu, Guanliu Yu, Aihua Wang, Aihua Wang, Aihua Wang, Yi Tang, Yi Tang, Yi Tang, Youxiang Diao, Youxiang Diao, Youxiang Diao   +11 more
openaire   +3 more sources

The immune system of chicken and its response to H9N2 avian influenza virus. [PDF]

Vet Q, 2023
Influenza A virus is a negative-sense single-stranded RNA virus that belongs to Orthomyxoviridae family. Based on the antigenic characteristics of hemagglutinin (HA) and neuraminidase (NA) influenza viruses are classified into multiple subtypes. H9N2 belongs to the low pathogenic Avian Influenza Viruses (AIVs) and is one of the widely spread viruses in
Yang W, Liu X, Wang X.
europepmc   +4 more sources

The inhibitory effect of Hypericum japonicum on H9N2 avian influenza virus. [PDF]

Adv Biotechnol (Singap)
AbstractThe H9N2 subtype of avian influenza virus (AIV) causes severe immunosuppression and high mortality in view of its frequent co-infection with other pathogens, resulting in significant economic losses in the poultry industry. Current vaccines provide suboptimal immune protection against H9N2 AIV owing to antigenic variations, highlighting the ...
Hu H, Li J, Zheng S, Zhao K, Xia Y, Wei X, Han M, Zhao Y, Peng O, Zhao Z, Chen Z, Su W, Cao Y, Wang Y, Xue C.   +14 more
europepmc   +3 more sources

Characterization of H9N2 Avian Influenza Viruses Isolated from Poultry Products in a Mouse Model

Viruses, 2022
Low pathogenic H9N2 avian influenza viruses have spread in wild birds and poultry worldwide. Recently, the number of human cases of H9N2 virus infection has increased in China and other countries, heightening pandemic concerns. In Japan, H9N2 viruses are
Jurika Murakami, Akihiro Shibata, Gabriele Neumann, Masaki Imai, Tokiko Watanabe, Yoshihiro Kawaoka   +5 more
doaj   +1 more source

Avian influenza virus H9N2 infections in farmed minks [PDF]

Virology Journal, 2015
The prevalence of avian H9N2 viruses throughout Asia, along with their demonstrated ability to infect mammals, puts them high on the list of influenza viruses with pandemic potential for humans. In this study, we investigated whether H9N2 viruses could infect farmed minks.First, we conducted a serological survey for avian influenza virus antibodies on ...
Zhang, Chuanmei, Xuan, Yang, Shan, Hu, Yang, Haiyan, Wang, Jianlin, Wang, Ke, Li, Guimei, Qiao, Jian   +7 more
openaire   +2 more sources

Identification of thermostability-enhancing mutations in H9N2 avian influenza virus hemagglutinin. [PDF]

J Virol
ABSTRACT H9N2 avian influenza viruses (AIVs) remain a significant economic burden on poultry production and a persistent zoonotic threat. Hemagglutinin (HA), a surface glycoprotein mediating viral entry and pathogenesis, critically depends on thermostability for its ...
Liu B, Yu H, Yan Z, Zou S, Guo J, Cai S, Hu Y, Yang Y, Yan Y, Liu H, Mei K, Li Z, Qin L, Li Y, Huang S, Wen F.   +15 more
europepmc   +3 more sources

Isolation of avian influenza virus (H9N2) from emu in China [PDF]

Irish Veterinary Journal, 2006
This is the first reported isolation of avian influenza virus (AIV) from emu in China. An outbreak of AIV infection occurred at an emu farm that housed 40 four-month-old birds. Various degrees of haemorrhage were discovered in the tissues of affected emus. Cell degeneration and necrosis were observed microscopically.
Kang Wenhua, Pang Wanyong, Hao Junfeng, Zhao Deming   +3 more
openaire   +3 more sources

Detection of a Reassortant H9N2 Avian Influenza Virus with Intercontinental Gene Segments in a Resident Australian Chestnut Teal

Viruses, 2020
The present study reports the genetic characterization of a low-pathogenicity H9N2 avian influenza virus, initially from a pool and subsequently from individual faecal samples collected from Chestnut teals (Anas castanea) in southeastern Australia ...
Tarka Raj Bhatta, Anthony Chamings, Jessy Vibin, Marcel Klaassen, Soren Alexandersen   +4 more
doaj   +1 more source

Experimental Infection and In-Contact Transmission of H9N2 Avian Influenza Virus in Crows [PDF]

Pathogens, 2022
This study aimed to investigate the potential of H9N2 avian influenza virus to cause disease and intra-species transmission in house crows (Corvus splendens). A group of six crows were intranasally inoculated with 106.0 EID50 of H9N2 virus (A/chicken/India/07OR17/2021), and 24 h post-inoculation six naïve crows were co-housed with infected crows. Crows
Asha Kumari Verma, Manoj Kumar, Harshad V. Murugkar, Shanmugasundaram Nagarajan, Chakradhar Tosh, Pushpendra Namdeo, Rupal Singh, Suman Mishra, Subbiah Kombiah, Senthilkumar Dhanapal, Vijendra Pal Singh   +10 more
openaire   +3 more sources

Novel sialic acid derivatives lock open the 150-loop of an influenza A virus group-1 sialidase [PDF]

, 2010
This work was supported by the Medical Research Council and the Scottish Funding Council.Influenza virus sialidase has an essential role in the virus’ life cycle.
Russell, Rupert James Martin, Thomson, Robin J, Thomson, Robin, Dyason, Jeffrey C, von Itzstein, M, Naffakh, Nadia, S. Kerry, Philip, Nadia Naffakh, Mark von Itzstein, Faith J. Rose, Rameix-Welti, Marie-Anne, Robin J. Thomson, Dyason, Jeffrey, Dyason, JC, Rupert J. M. Russell, van der Werf, S, Russell, Rupert J M, Santosh Rudrawar, Rose, Faith J, Russell, Rupert JM, Kerry, Philip Stephen, Jeffrey C. Dyason, von Itzstein, Mark, Thomson, RJ, J.M. Russell, Rupert, Rudrawar, S, Marie-Anne Rameix-Welti, Kerry, Philip S, Rose, FJ, Naffakh, N, Rameix-Welti, MA, Philip S. Kerry, van Der Werf, Sylvie, Rose, Faith, Rudrawar, Santosh, Sylvie van der Werf   +35 more
core   +2 more sources