Author

E. Dorlass

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Open access Oct 2026

Genomic Characterization of a Reassortant A/H1N8 Avian Influenza Virus in South American Migratory Shorebirds

Avian influenza viruses (AIVs) circulate widely among migratory birds, where frequent reassortment drives the emergence of novel genomic constellations. However, the evolutionary pathways underlying these events remain poorly understood in South America due to historically limited genomic surveillance. Here, we report...

Gustavo de Oliveira Fenner, L. M. Thomazelli, E. Dorlass et al. · Pathogens · 0 citations

Oct 2026

Detection of Divergent Highly Pathogenic Avian Influenza A(H5N1) Clade 2.3.4.4b Virus, São Paulo, Brazil, 2025

In 2025, we detected highly pathogenic avian influenza H5N1 virus in dead waterfowl at Ibirapuera Park, São Paulo, Brazil. Genomic characterization indicated a reassortant virus that emerged from locally circulating low pathogenicity avian influenza viruses and highly pathogenic North American lineages. Our results hig...

J. de Araújo, Luciano M. Thomazelli, Thomas P. Fabrizio et al. · Emerging Infectious Diseases · 0 citations