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Is dog myositis contagious? Can it spread to other dogs or humans?

Updated On September 23rd, 2025

Dog myositis that is degeneration of muscle can’t transfer to human but is it communicable and transfer to other dog ??? Like can it transfer to healthy dog from infected dog through human intermediation or direct contact with infected dog

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Answered By Claudia Fioravanti

Veterinarian

Published on March 9th, 2019

No it can’t be transferred to dogs, nor to humans. It is an immune disorder in which the dog’s immune system recognises the dig’s own muscles tissue as foreign and attacks it. Some dogs may be genetically predisposed to immune-mediated diseases and this disease gets triggered by something. Most of the time the trigger is not found. The dog you sent the pictures too had wasted quite of his masticatori muscles, is he still able to eat ? Is he comfortable ? Agressive treatment with steroids help things settle and should make him feel more comfortable. I am not sure if he is on any other medications hence I have suggested to see your vet.

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