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Avian Influenza Detected at Año Nuevo State Park

A small number of young northern elephant seals at Año Nuevo State Park recently tested positive for H5N1, also known as bird flu. This is the first detection of H5N1 in California’s marine mammal population.

The risk of H5N1 to the public remains very low. We’re sharing guidance on how to protect yourself, your pets and marine mammals – and how you can help.

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Elephant seal
California sea lion Dangela
In the News

San Francisco Chronicle: Sea Lions Battling Deadly Disease

October 17, 2018
  • Leptospirosis

Sea Lions Off Northern California Battling Deadly Disease

Published in the San Francisco Chronicle: October 17, 2018

Hundreds of California sea lions have been stricken by an often deadly bacterial infection and are washing ashore daily up and down the coast, raising fears among biologists that an already soaring death toll could continue to rise.

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