An outbreak of lymphocystis disease virus infection in cultured juvenile John's snapper (Lutjanus johnii) in Malaysia

Nurliyana, M.; Jumria, S.; Lukman, B.; Yasin, Ina Salwany Md; Zamri‐Saad, Mohd; Salleh, Annas; Keong, M.K.; Norhariani, M.N.; Rozi, R.; Amal, Mohammad Noor Azmai

doi:10.1016/j.aquaculture.2023.739502

Cited by 4 publications

(2 citation statements)

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“…Lymphocystis disease is commonly observed in both wild and captive fish populations. The transmission of the virus to humans is rare and usually occurs through direct contact with infected fish or contaminated water (Nurliyana et al 2023). In fish, post mortem examination may reveal the presence of characteristic nodules or growths on the skin, fins or gills.…”

Section: Clinical Findingsmentioning

confidence: 99%

Ornamental Fishes and Zoonotic Problems to Animals and Public Health

2023

IJAB

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The ornamental fish trade and aquarium hobby have grown exponentially, aided by the globalization of commerce and the ease of transport. However, the movement of ornamental fish also poses threats to ecosystems, animal health, and public health. Ornamental fishes may serve as carriers or vectors of potentially zoonotic organisms, including viral, bacterial, fungal and parasitic pathogens. Mycobacteriosis, caused by Mycobacterium spp. and exophiala infections are frequent among imported tropical freshwater fishes. Clinical signs vary from chronic wasting, skin lesions and hemorrhages to non-apparent infections, thus facilitating disease transmission to other fishes o r humans. Free-living pathogens are also dispersed to new habitats through aquarium release and contaminated water disposal. Protozoa like Cryptocaryon or Amyloodinium can produce disease both in marine fishes and humans, although unusual. Trematodes inhabiting freshwater and estuarine fishes utilize other animals as intermediate/paratenic hosts and are capable of infecting humans if infected fish are consumed raw or improperly cooked. However, the greatest public health risks from the ornamental fish trade likely come from exposing immunocompromised aquarists and fish-handlers to opportunistic bacterial, fungal, and mycobacterial infections. Thus, education regarding proper hygiene practices should accompany the promotion and sale of ornamental fishes. Additional research is needed to better characterize pathogens associated with the ornamental fish trade and implement biosecurity measures to prevent introduction of invasive organisms. This book chapter reviews the diversity of potential zoonotic organisms i dentified among imported ornamental fishes, pathological findings, transmission routes to humans, as well as diagnosis, treatment and preventive guidelines.

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Section: Clinical Findingsmentioning

confidence: 99%

Ornamental Fishes and Zoonotic Problems to Animals and Public Health

2023

IJAB

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“…Herring devours mysida in the coastal region of the Baltic Sea [15,32]. Lymphocystis is a chronic disease of marine fishes caused by infection with an iridovirus known as Lymphocystivirus or Lymphocystis disease virus (LCDV) [5,35]. The harmful disease Lymphocystis affects herring [2].…”

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confidence: 99%

A brief discussion about a predator-prey model including disease in predators with the delay effect

Das,

Chakraborty

2023

NACO

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Prey-predator interactions in an ecosystem are greatly influenced by the gestation delay and disease. To analyze the complex dynamics of the prey-predator interaction, we have proposed a three-tire delayed eco-epidemic model including disease in the predator population. During the study of this model, we establish the positivity and boundedness of the proposed model and also find all possible equilibrium points with their local and global stability condition in absence and presence of gestation delay. Analytical and numerical studies explain the existence of Transcritical and Hopf-bifurcations. Using sensitivity analysis, we examine the positive and negative impact of all model parameters and identify the most significant parameters. The main objective is to understand how disease and gestation delay influence the populations of this proposed model and also examine the combined effect of both gestation delay and disease infection rate. Furthermore, we incorporate the disease transmission delay and explore the combined effect of both gestation delay and disease transmission delay on the solutions of the proposed system. Numerically, we have demonstrated that the system experiences only steady and periodic behavior under the influence of gestation delay, but under the combined impact of both gestation delay and disease transmission delay, the system undergoes stable, one-periodic, two-periodic, and chaotic regimes.

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