Disentangling the role of Africa in the global spread of H5 highly pathogenic avian influenza.
Nat Commun
; 10(1): 5310, 2019 11 22.
Article
en En
| MEDLINE
| ID: mdl-31757953
The role of Africa in the dynamics of the global spread of a zoonotic and economically-important virus, such as the highly pathogenic avian influenza (HPAI) H5Nx of the Gs/GD lineage, remains unexplored. Here we characterise the spatiotemporal patterns of virus diffusion during three HPAI H5Nx intercontinental epidemic waves and demonstrate that Africa mainly acted as an ecological sink of the HPAI H5Nx viruses. A joint analysis of host dynamics and continuous spatial diffusion indicates that poultry trade as well as wild bird migrations have contributed to the virus spreading into Africa, with West Africa acting as a crucial hotspot for virus introduction and dissemination into the continent. We demonstrate varying paths of avian influenza incursions into Africa as well as virus spread within Africa over time, which reveal that virus expansion is a complex phenomenon, shaped by an intricate interplay between avian host ecology, virus characteristics and environmental variables.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Enfermedades de las Aves de Corral
/
Gripe Humana
/
Gripe Aviar
Límite:
Animals
/
Humans
País/Región como asunto:
Africa
Idioma:
En
Revista:
Nat Commun
Asunto de la revista:
BIOLOGIA
/
CIENCIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Italia