First observation of herpes-like virus particles in northern pike, Esox lucius L., associated with bluespot-like disease in Ireland

Journal of Fish Diseases
D A GrahamK L Foyle

Abstract

Circular whitish granular lesions, 5-12 mm in diameter, were observed on the skin and fins of a wild northern pike, Esox lucius, caught in a lake in the Republic of Ireland. Histological examination of the lesions revealed hypertrophied cells in the epidermis with deeply basophilic enlarged nuclei and dark-staining granular material in the cytoplasm. Transmission electron microscopy of these cells revealed naked hexagonal herpes-like virus nucleocapsids (97 +/- 7 nm) in their nuclei while the cytoplasm contained multiple aggregates of enveloped viral particles. This is the first report of herpes-like virus particles in northern pike originating outside North America, where esocid herpesvirus-1 (EsHV-1) has previously been reported. Shared clinical, histological, morphological and epidemiological findings suggest that the observed particles in this report may also be EsHV-1.

References

Jun 17, 1978·The Veterinary Record·J S BuchananC R Madeley
Oct 1, 1971·Journal of Virology·K Wolf, R W Darlington
Jul 21, 2001·Diseases of Aquatic Organisms·A P van NieuwstadtO L Haenen
Sep 1, 1978·Journal of Virology·K WolfT Nagabayashi
Mar 1, 2000·Journal of Aquatic Animal Health·R P HedrickA Eldar

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Citations

Feb 6, 2013·ILAR Journal·Marcus J Crim, Lela K Riley
Jun 17, 2008·International Journal of Food Microbiology·Laura MurchieLouise Kelly
Dec 3, 2016·Diseases of Aquatic Organisms·Jared T FreitasThomas B Waltzek

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