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Diseases of Aquatic Organisms

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DAO 88:65-68 (2009)  -  DOI:

Appearance of red mark syndrome / cold water strawberry disease in Switzerland and Austria

H. Schmidt-Posthaus1,*, W. Bergmann2, R. Knüsel3, H. Heistinger4, E. Licek5

1Centre for Fish and Wildlife Health, Institute of Animal Pathology and 2Institute of Animal Pathology, University of Bern, Länggassstrasse 122, 3001 Bern, Switzerland
3fishdoc GmbH, Schaubhus, 6026 Rain, Switzerland
4Tierklinik Lilienfeld, Babenbergerstrasse 22, 3189 Lilienfeld, Austria
5Clinic for Avian, Reptile and Fish Medicine, University of Veterinary Medicine Vienna, Veterinärplatz 1,
1210 Vienna, Austria

ABSTRACT: Red mark syndrome (RMS) or cold water strawberry disease (CWSD) is a non-lethal skin disease of rainbow trout Oncorhynchus mykiss that is of high economic importance in the UK. The disease is temperature-dependent, with up to 60% morbidity at water temperatures below 15°C. Although CWSD is horizontally transmissible, the aetiology is still unknown. Here we describe the first cases of RMS on the European mainland in the alpine regions of Switzerland and Austria. In Switzerland, morbidity remained around 1% after the first outbreak, whereas in Austria no further cases were diagnosed.

KEY WORDS: Red mark syndrome · Coldwater strawberry disease · Oncorhynchus mykiss ·Austria · Switzerland · Water temperature

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Cite this article as: Schmidt-Posthaus H, Bergmann W, Knüsel R, Heistinger H, Licek E (2009) Appearance of red mark syndrome / cold water strawberry disease in Switzerland and Austria. Dis Aquat Org 88:65-68.

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