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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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musk ox on snowy ground

Contagious Dermatitis as a Portal of Entry for Bacteria in Muskoxen of the Canadian Arctic

Contagious Ecthyma Dermatitis as a Portal of Entry for Erysipelothrix rhusiopathiae in Muskoxen (Ovibos moschatus) of the Canadian Arctic
  • Infectious disease

Abstract

Erysipelothrix rhusiopathiae was detected immunohistochemically in contagious ecthyma (orf virus) dermatitis in two muskoxen (Ovibos moschatus), harvested and found dead in 2014 and 2015, respectively, on Victoria Island, Canada. This may help target further research on E. rhusiopathiae epidemiology and mechanisms of infection in muskoxen, recently associated with widespread mortalities in Canada's Arctic. 


Tomaselli, M., Ytrehus, B., Opriessnig, T., Duignan, P., Dalton, C., van der Meer, F., Kutz, S. and Checkley, S., 2022. Contagious Ecthyma Dermatitis as a Portal of Entry for Erysipelothrix rhusiopathiae in Muskoxen (Ovibos moschatus) of the Canadian Arctic. Journal of Wildlife Diseases, 58(1), pp.228-231.

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