02/26/2026
A concerning wildlife and public health development has emerged on the Peninsula.
Several elephant seals at Año Nuevo State Park in San Mateo County have tested positive for H5N1 bird flu — marking the first confirmed outbreak in elephant seals in California. Officials report at least 30 seals have died, and wildlife experts are closely monitoring the situation.
While the risk to the public remains low, this highlights the ongoing spread of avian influenza and the importance of continued surveillance across species.
Read more:
https://www.nbcbayarea.com/news/local/elephant-seals-ano-nuevo-bird-flu/4043223/
Several elephant seals belonging to the famed colony at Ano Nuevo State Park in San Mateo County have tested positive for bird flu.