Results 61 to 70 of about 670 (181)

Viral Pathogens Threatening Cage‐Cultured Nile Tilapia in Lake Victoria: Epidemiology, Emerging Risks and Integrated Health Management Strategies

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 3, June 2026.
ABSTRACT The rapid expansion of cage culture for Nile tilapia (Oreochromis niloticus) in Lake Victoria is central to food security and profitable development in East Africa. Nevertheless, viral conditions affect the sustainability of this sector, with significant imbalances in livelihood, trade and aquaculture adaptability.
Richard S. Komba, Chacha J. Mwita
wiley   +1 more source

Application of Environmental DNA for Monitoring Red Sea Bream Iridovirus at a Fish Farm

open access: yesMicrobiology Spectrum, 2021
Red sea bream iridoviral disease (RSIVD) causes high economic damage in mariculture in Asian countries. However, there is little information on the source of infection and viral dynamics in fish farms. In the present study, the dynamics of RSIV in a fish
Yasuhiko Kawato   +3 more
doaj   +1 more source

Outbreak investigation attributes Infectious spleen and kidney necrosis virus as a necessary cause of a mortality epidemic in farmed grouper (Epinephelus spp.) in Bali, Indonesia

open access: yesAquaculture Reports, 2021
In 2016, famers reported mass mortality events in hybrid grouper within 2–4 weeks following transfer to sea cages on the northern coast of Bali. The objective was to obtain an aetiological diagnosis using a broad range of traditional and emerging ...
Cahya Fusianto   +5 more
doaj   +1 more source

Viral Disease Histopathology in Aquaculture Finfish: Organ‐Specific Pathological Changes and Diagnostic Insights, Referencing the World Organisation for Animal Health: A Review

open access: yesReviews in Aquaculture, Volume 18, Issue 2, March 2026.
ABSTRACT The aquaculture industry faces significant challenges from viral diseases, many of which are listed by the World Organisation for Animal Health (WOAH) as priority pathogens due to their impact on global finfish health and production. This review synthesizes current knowledge on the histopathology of key WOAH‐listed viral pathogens, including ...
Ram Babu Kurapati   +4 more
wiley   +1 more source

Characterization and Antibody Preparation of the Gene Products of Grouper Iridovirus ORF5L

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Grouper iridovirus (GIV) is a large DNA virus belonging to the family Iridoviridae and genus Ranavirus. It consists of 139,793 base pairs (bp) and 120 open reading frames (ORFs). GIV is a key pathogen of farmed fish worldwide. The functional roles of viral genes must be determined for the early diagnosis, treatment and prevention of viral ...
Chu‐Fan Cheng   +2 more
wiley   +1 more source

Quantitative analysis of the clinical signs in marine fish induced by Megalocytivirus infection

open access: yesJournal of fish pathology, 2011
In quantitative studies of clinical signs, rock bream of adults and juveniles infected with Megalocytivirus IVS-1 isolated from rock bream (Oplegnathus fasciatus) in Korea showed average and of spleen index respectively. In challenge experiments, Megalocytivirus IVS-1 induced 100% cumulative mortality in both adult and juvenile rock bream.
Ji-Woong Jin   +5 more
openaire   +2 more sources

Poly(I:C) induces antiviral immune responses in Japanese flounder (Paralichthys olivaceus) that require TLR3 and MDA5 and is negatively regulated by Myd88. [PDF]

open access: yesPLoS ONE, 2014
Polyinosinic:polycytidylic acid (poly(I:C)) is a ligand of toll-like receptor (TLR) 3 that has been used as an immunostimulant in humans and mice against viral diseases based on its ability to enhance innate and adapt immunity. Antiviral effect of poly(I:
Zhi-xia Zhou, Bao-cun Zhang, Li Sun
doaj   +1 more source

Formalin‐fixed paraffin‐embedded (FFPE) samples help to investigate transcriptomic responses in wildlife disease

open access: yesMolecular Ecology Resources, Volume 25, Issue 5, July 2025.
Abstract Infectious diseases impact numerous organisms. Knowledge of host‐pathogen interactions and host responses to infection is crucial for conservation and management. Obtaining this knowledge quickly is made increasingly possible by a variety of genomic approaches, yet, for many species the bottleneck to understanding this, remains access to ...
Allison K. Miller   +7 more
wiley   +1 more source

Immunofluorescent analysis of P247 and P523 expression in megalocytivirus-infected fish.

open access: yes, 2015
Peripheral blood leukocytes were collected from turbot infected with (A, B, G, and H) or without (D, E, J, and K) megalocytivirus. The cells were treated with rat antibodies against recombinant P247 (A, B, D, and E) or P523 (G, H, J, and K) and then with
Li Sun (4624)   +2 more
core   +1 more source

Prevalence of Infectious Spleen and Kidney Necrosis Virus (ISKNV), Nervous Necrosis Virus (NNV) and Ectoparasites in Juvenile Epinephelus spp. Farmed in Aceh, Indonesia

open access: yesPathogens, 2020
A cross-sectional survey was used to estimate the prevalence of infections with the Infectious spleen and kidney necrosis virus (ISKNV, Megalocytivirus), nervous necrosis virus (NNV, Betanodavirus), and infestations with ectoparasites during the rainy ...
Bakhtiar Sah Putra   +7 more
doaj   +1 more source

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