Sea Lion Dies From Bird Flu in San Luis Obispo

First confirmed case of avian influenza in a marine mammal in the county

Mar. 28, 2026 at 7:46am

A deceased sea lion found along Morro Strand State Beach in San Luis Obispo County has tested positive for avian influenza or bird flu, marking the first confirmed case in a marine mammal in the county. While the risk to the public remains low, officials are urging residents and visitors to avoid approaching sick, injured, or deceased marine mammals and seabirds.

Why it matters

The discovery of bird flu in a sea lion raises concerns about the potential spread of the virus to other marine wildlife in the region. Officials are monitoring the situation closely to understand the implications for coastal ecosystems and public health.

The details

The California Department of Public Health is advising people to stay 150 yards away from all marine mammals and seabirds, and to keep children and pets away from sick, injured or dead wildlife. Anyone who spots a sick or dead marine animal is asked to call the NOAA West Coast Marine Mammal Stranding Hotline or the California Department of Fish and Wildlife for assistance.

  • The deceased sea lion was recently found along Morro Strand State Beach in San Luis Obispo County.

The players

California Department of Public Health

The state agency responsible for monitoring and responding to public health issues, including the spread of avian influenza.

NOAA West Coast Marine Mammal Stranding Hotline

The hotline for reporting sick, injured, or deceased marine mammals along the West Coast of the United States.

California Department of Fish and Wildlife

The state agency responsible for managing and protecting California's wildlife and natural resources.

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What’s next

Officials are closely monitoring the situation and urging the public to report any sightings of sick or deceased marine wildlife to the appropriate authorities.

The takeaway

The discovery of bird flu in a sea lion highlights the need for continued vigilance and cooperation between public health agencies, wildlife organizations, and the public to protect coastal ecosystems and prevent the spread of zoonotic diseases.