Highly Pathogenic Avian Influenza A(H5N1) Virus in a Harbor Porpoise, Sweden.

Elina Thorsson Siamak Zohari Anna Roos Fereshteh Banihashem Caroline Bröjer Aleksija Neimanis

PMID36918379 DOI10.3201/eid2904.221426 Year2023 Journal Emerging infectious diseases Emerg Infect Dis Languageeng Statusppublish

Abstract

We found highly pathogenic avian influenza A(H5N1) virus clade 2.3.4.4b associated with meningoencephalitis in a stranded harbor porpoise (Phocoena phocoena). The virus was closely related to strains responsible for a concurrent avian influenza outbreak in wild birds. This case highlights the potential risk for virus spillover to mammalian hosts.

Supporting text Virus Host Location

H5N1 subtype 3 influenza 61 influenza A virus 227 influenza in birds 341 mammals 99 meningitis/encephalitis 4 pathology 3 Phocoena 1 porpoises 1 Sweden 3 viruses 117 wild animals 2 zoonoses 477 Influenza A virus 186 Influenza A Virus, H5N1 Subtype 300 Influenza in Birds 341 Phocoena 1 Animals 1948 Mammals 92 Phylogeny 805 Sweden 3

Evidence records

2 total

Zoonotic Surveillance

1 records · 1 evidence types

Evidence type Viral Detection

1 records

OVE6851 Viral Detection

Key finding

Highly pathogenic avian influenza A(H5N1) virus clade 2.3.4.4b was detected in a stranded harbor porpoise in Sweden.

Virus

Host

Location

Supporting text

Highly Pathogenic Avian Influenza A(H5N1) Virus in a Harbor Porpoise, Sweden.

Method: viral RNA detection | genomic sequencing | phylogenetic comparison
Sample type: tissue from stranded harbor porpoise
Geographic raw: Sweden
Country inferred: SWE

Genomic Evolution

1 records · 1 evidence types

Evidence type Phylogenetic Evolution

1 records

OVE6852 Phylogenetic Evolution

Key finding

Phylogenetic analysis showed that the highly pathogenic avian influenza A(H5N1) virus from a harbor porpoise was closely related to strains from a concurrent outbreak in wild birds in Sweden.

Virus

Host

Location

Supporting text

The virus was closely related to strains responsible for a concurrent avian influenza outbreak in wild birds.

Analysis methods: phylogenetic analysis

References

10 references

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11 nodes · 10 links

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