A dominant internal gene cassette of high pathogenicity avian influenza H7N9 virus raised since 2018.
Virus Genes
; 58(6): 584-588, 2022 Dec.
Article
en En
| MEDLINE
| ID: mdl-35974285
ABSTRACT
The zoonotic H7N9 avian influenza virus emerged with the H9N2-origin internal gene cassette. Previous studies have reported that genetic reassortments with H9N2 were common in the first five human H7N9 epidemic waves. However, our latest work found that the circulating high pathogenicity H7N9 virus has established a dominant internal gene cassette and has decreased the frequency of reassortment with H9N2 since 2018. This dominant cassette of H7N9 was distinct from the cocirculating H9N2, although they shared a common ancestor. As a result, we suppose that this dominant cassette may benefit the viral population fitness and promote its continuous circulation in chickens.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Gripe Humana
/
Subtipo H9N2 del Virus de la Influenza A
/
Subtipo H7N9 del Virus de la Influenza A
/
Gripe Aviar
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Virus Genes
Asunto de la revista:
BIOLOGIA MOLECULAR
/
VIROLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
China