Recent Changes in Patterns of Mammal Infection with Highly Pathogenic Avian Influenza A(H5N1) Virus Worldwide

We reviewed information about mammals naturally infected by highly pathogenic avian influenza A virus subtype H5N1 during 2 periods: the current panzootic (2020-2023) and previous waves of infection (2003-2019). In the current panzootic, 26 countries have reported >48 mammal species infected by H5N1 virus; in some cases, the virus has affected thousands of individual animals. The geographic area and the number of species affected by the current event are considerably larger than in previous waves of infection. The most plausible source of mammal infection in both periods appears to be close contact with infected birds, including their ingestion. Some studies, especially in the current panzootic, suggest that mammal-to-mammal transmission might be responsible for some infections; some mutations found could help this avian pathogen replicate in mammals. H5N1 virus may be changing and adapting to infect mammals. Continuous surveillance is essential to mitigate the risk for a global pandemic.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:30

Enthalten in:

Emerging infectious diseases - 30(2024), 3 vom: 15. März, Seite 444-452

Sprache:

Englisch

Beteiligte Personen:

Plaza, Pablo I [VerfasserIn]
Gamarra-Toledo, Víctor [VerfasserIn]
Euguí, Juan Rodríguez [VerfasserIn]
Lambertucci, Sergio A [VerfasserIn]

Links:

Volltext

Themen:

Avian influenza
Emerging pathogens
H5N1
Highly pathogenic avian influenza
Journal Article
Mammals
Public health
Review
Viruses
Zoonoses

Anmerkungen:

Date Completed 27.02.2024

Date Revised 02.03.2024

published: Print

Citation Status MEDLINE

doi:

10.3201/eid3003.231098

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368971473