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- Title
CARP EDEMA VIRUS DISEASE IN SERBIA -- A DISEASE OUT OF CONTROL.
- Authors
Radosavljević, Vladimir; Glišić, Dimitrije; Maksimović-Zorić, Jelena; Veljović, Ljubiša; Nešić, Ksenija; Miličević, Vesna
- Abstract
A poxvirus named carp edema virus (CEV) is the causative agent of carp edema virus disease (CEVD), which is an emerging disease of global concern that may cause high rates of morbidity and mortality in ornamental koi and common carp. Common carp (Cyprinus carpio) is the most important fish species for warm-water aquaculture in Serbia. CEVD was first detected in Serbia in 2017. During the 2017-2020 period, an increasing number of CEVD outbreaks in carp farms was reported. The carp were collected from farms in different regions of Serbia from 2017 to 2020. The fish were sampled for disease diagnosis because they exhibited lethargy and anorexia, which eventually led to mortality. Mortality started with clinical signs of hypoxia and the fish swam slowly and were unresponsive. The gills were pale and covered with a thick mucus layer. In later stages of the disease, the lesions in the gills turned into a necrotizing form. A moderate to high amount of opportunistic freshwater bacteria were isolated from the gills of the diseased fish. By performing real-time PCR, CEV was detected in 38 samples of the diseased carp taken from 21 carp farms. These outbreaks further confirm the spread of CEVD and the need for practitioners to be vigilant in the event of an outbreak of this disease. To prevent further spreading of the disease, it is very important to introduce CEV testing before moving fish. To avoid further transmission of the virus to common carp populations in Serbia, the testing of CEV should become part of fish disease surveillance programs. Fish health service should be aware of the presence of CEV in Serbia which may result in high losses in carp aquaculture. Action should also be taken to prevent transmission of CEV to carp populations in open waters.
- Subjects
CARP; EDEMA; VIRUS diseases in fishes; HYPOXEMIA; CLINICAL trials
- Publication
Archives of Veterinary Medicine / Arhiv Veterinarske Medicine, 2021, Vol 14, Issue 1, p37
- ISSN
1820-9955
- Publication type
Article
- DOI
10.46784/eavm.v14i1.261