Vaccination and challenge with Tenacibaculum sp. to Atlantic salmon

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To determine if a certain strains of Tenacibaculum disentrarchi like bacteria cause ulcers, disease and mortality in Atlantic salmon, route of infection, and determine if vaccination, both immersion and ip, against these strain will prevent such ulcers and disease.
Safety and efficacy by survival, number of ulcers will be compared between the treatment groups and untreated controls.

The groups challenged with the bacterias are expected to have a higer prevalense of ulcer and also higher mortality than the control groups and also higher than the vaccinated groups.

The results from the study will be a part of the proof needed to show that these strain cause disease and ulcers and vaccination will prevent that kind of ulcers and disease.