Epizootic Ulcerative Syndrome (EUS) Technical Handbook
Epizootic Ulcerative Syndrome (EUS) Technical Handbook
Epizootic Ulcerative Syndrome (EUS) Technical Handbook
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<strong>Epizootic</strong> <strong>Ulcerative</strong> <strong>Syndrome</strong> (<strong>EUS</strong>) <strong>Technical</strong> <strong>Handbook</strong>Biological agents associated with <strong>EUS</strong> infectionAphanomyces invadans hyphaedemonstrating ability to grow invasivelythrough snakehead muscle. (Grocott's stain).Squash preparation of fungus showingtypical Aphanomyces characteristics.Moderate dermatitis in snakehead followingintra-muscular injection of rhabdovirusisolate T9412. This virus is considered aprobable component cause of <strong>EUS</strong>.Typical <strong>EUS</strong>-like dermal ulceration insnakehead following intra-muscular injectionof rhabdovirus T9412 followed by bathchallenge with Aphanomyces invadanszoospores.Lesions caused by Lernaea infestation, whichmay predispose fish to <strong>EUS</strong>.Cutaneous Flexibacter bacterial infectionwhich may predispose fish to <strong>EUS</strong>.1
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