Liu WJ, Xiao H, Dai L, Liu D, Chen J, Qi X, Bi Y,. Avian influenza A (H7N9) virus: from low pathogenic to highly pathogenic. Front Med. 2021 Apr 16.
The avian influenza A (H7N9) virus is a zoonotic virus that is closely associated with live poultry markets. It has caused infections in humans in China since 2013. Five waves of the H7N9 influenza epidemic occurred in China between March 2013 and September 2017. H7N9 with low-pathogenicity dominated in the first four waves, whereas highly pathogenic H7N9 influenza emerged in poultry and spread to humans during the fifth wave, causing wide concern. Specialists and officials from China and other countries responded quickly, controlled the epidemic well thus far, and characterized the virus by using new technologies and surveillance tools that were made possible by their preparedness efforts. Here, we review the characteristics of the H7N9 viruses that were identified while controlling the spread of the disease. It was summarized and discussed from the perspectives of molecular epidemiology, clinical features, virulence and pathogenesis, receptor binding, T-cell responses, monoclonal antibody development, vaccine development, and disease burden. These data provide tools for minimizing the future threat of H7N9 and other emerging and re-emerging viruses, such as SARS-CoV-2.
See Also:
Latest articles in those days:
- Influenza D Virus Infection in China, 2022-2023 22 hours ago
- Evidence of reassortment of avian influenza A (H2) viruses in Brazilian shorebirds 22 hours ago
- Epitopes in the HA and NA of H5 and H7 avian influenza viruses that are important for antigenic drift 2 days ago
- Assessment of CD8+ T-cell mediated immunity in an influenza A(H3N2) human challenge model in Belgium: a single centre, randomised, double-blind phase 2 study 2 days ago
- Dual N-linked glycosylation at residues 133 and 158 in the hemagglutinin are essential for the efficacy of H7N9 avian influenza virus like particle vaccine in chickens and mice 2 days ago
[Go Top] [Close Window]