Highly Pathogenic Avian Influenza Virus Subtype 5 in Cetaceans, Brazil
A. S. Melgarejo
Maurício Tavares
D. B. de Amorim
S. Estima
Andrine Paiva
Caio R. Soares-Oliveira
Liane A. Dias
Renan C. de Lima
Silvina Botta
E. Secchi
Barbara A. Davila
Carlos Junio de Oliveira
Larissa S. Heinzelmann
M. T. Oliveira
V. L. Carvalho
A. R. Souza
Salvatore Siciliano
Paula Baldassin
Greicy F. Ruenes
P. H. Ott
L. Sonne
A. C. Franco
L. R. Oliveira
Medicine
Abstract
We identified highly pathogenic avian influenza virus subtype H5 in stranded dolphins along the coastline of Brazil during 2023–2025. Infected animals included species classified as vulnerable or endangered. Our results highlight the need for ongoing surveillance of cetaceans susceptible to viral infections, which pose an additional threat to threatened species.