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Papers by fatemeh hassantabar
Journal of Biomedical Research & Environmental Sciences, 2022
The consumption of fish as useful animal protein is on the rise around the world, and the transpo... more The consumption of fish as useful animal protein is on the rise around the world, and the transport of fish is being considered as a means of trade between countries around the world. Every year, the occurrence of the Viral Necrosis Virus (VNN) disease in fish, as their main host, causes great damage to the fisheries industry. Undoubtedly, one of the ways to succeed in the aquaculture industry of the future will be the rapid diagnosis and prevention of aquatic diseases, which are currently the biggest cause of losses in the aquaculture industry. Failure to definitively diagnose the pathogen in aquatic animals has led to an increase in the use of antibiotics and, while it may not lead to definitive treatment, has also led to the development of drug resistance. Therefore, prolonging the time of identification and diagnosis of the pathogen causes more prevalence of the disease, more losses and damages in fish farms and the resulting costs. OIE documents and various pieces of evidence i...
Journal of Fish Diseases, 2021
A lateral flow immunochromatography strip test, based on antibody-gold nanoparticles specific for... more A lateral flow immunochromatography strip test, based on antibody-gold nanoparticles specific for nervous necrosis virus (NNV), was developed for rapid, on-site detection of the virus in fish stocks. A monoclonal antibody against NNV was conjugated with colloidal gold as the detector antibody. A rabbit anti-NNV polyclonal antibody and goat anti-mouse IgG antibody were blotted onto the nitrocellulose membrane as the capture antibodies on the test line and control line, respectively. The reaction could be seen by the eye within 15 min and did not cross-react with the other viruses tested. The detection limit of the strip was approximately 103 TCID50 /ml and had good stability after storage at 4°C for 8 months. When brains of 70 naturally infected golden grey mullet, Chelon aurata, were tested with the strip test, the diagnostic specificity and sensitivity of the test compared to real-time RT-PCR were 100% and 74%, respectively. Therefore, the one-step test strip developed here had high specificity, reproducibility, and stability. This, together with its simplicity to use and rapid detection, without the requirement of sophisticated equipment or specialized skills, makes the strip suitable for pond-side detection of NNV in farmed fish.
Iranian Journal of Virology, 2019
Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and d... more Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and devastating disease of many species of cultured and marine fish worldwide. It caused by betanodaviruses a serious concern especially in the fry and young fish. This virus infects most of the cultured fishes causing severe mortality. Our current review focuses chiefly on recent studies performed on VNN disease. Recent outbreaks have been reported in China, Indonesia, Singapore and India, affecting the mariculture and aquaculture industry. It also decreased dramatically Mullet stocks in the Caspian Sea. The four main genotypes of VNN were found in all continentals’ except South America. The economic loss due to the virus is mainly due to mortality and spread of infection both vertically and horizontally. Our investigation in recent years suggest that more research and epidemiological surveys should be conducted, especially in critical areas were mariculture farms are planned to be establish...
Iranian Journal of Aquatic Animal Health, 2020
The novel pandemic disease has been evaluated as a global health emergency by the World Health Or... more The novel pandemic disease has been evaluated as a global health emergency by the World Health Organization (WHO) due to its rapid spread worldwide. In many countries, the established restrictive measures on the movement and travel have had adverse economic outcomes, including a substantial drop in both jobs and salaries, in these communities. The economic consequences of the COVID-19 have severely affected the aquatic food supply chain, i.e. the fishers, aquaculture farmers, processing, and marketing sector due to the decrease in consumer purchasing power. There is increasing evidence that the farmers are not able to sell their products which lead to the live fish stocks increasing and therefore higher costs for feeding.
Emerging and Reemerging Viral Pathogens
Abstract Koi herpesvirus (KHV) disease emerged in 1999s, and since then it has spread throughout ... more Abstract Koi herpesvirus (KHV) disease emerged in 1999s, and since then it has spread throughout the world. The disease leads to mass mortality of koi and carp, resulting in severe economic losses. Optimal temperature ranges for the KHV are between 16°C and 25°C. Keeping optimal temperature range at over 30°C is effective in reducing mortality, but survivors may become carriers of the virus. The affected fish can show a loss of color, sunken eyes, and gill necrosis. Excessive mucus on the skin and gills is frequently noticed. In some cases, inflammation and necrosis of the liver, spleen, intestinal tract, and kidney have been also observed. Diagnostic techniques for KHV diseases of fish are epidemiological investigation, disease signs, and polymerase chain reaction detection of KHV DNA. Presently, there are no antiviral drugs to treat KHV. However, there are commercially available vaccines in some areas.
Iranian Journal of Virology, 2019
Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and d... more Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and devastating disease of many species of cultured and marine fish worldwide. It caused by betanodaviruses a serious concern especially in the fry and young fish. This virus infects most of the cultured fishes causing severe mortality. Our current review focuses chiefly on recent studies performed on VNN disease. Recent outbreaks have been reported in China, Indonesia, Singapore and India, affecting the mariculture and aquaculture industry. It also decreased dramatically Mullet stocks in the Caspian Sea. The four main genotypes of VNN were found in all continentals’ except South America. The economic loss due to the virus is mainly due to mortality and spread of infection both vertically and horizontally. Our investigation in recent years suggest that more research and epidemiological surveys should be conducted, especially in critical areas were mariculture farms are planned to be establish...
Aquaculture International, 2014
ABSTRACT
Aquaculture International
ABSTRACT
Journal of Biomedical Research & Environmental Sciences, 2022
The consumption of fish as useful animal protein is on the rise around the world, and the transpo... more The consumption of fish as useful animal protein is on the rise around the world, and the transport of fish is being considered as a means of trade between countries around the world. Every year, the occurrence of the Viral Necrosis Virus (VNN) disease in fish, as their main host, causes great damage to the fisheries industry. Undoubtedly, one of the ways to succeed in the aquaculture industry of the future will be the rapid diagnosis and prevention of aquatic diseases, which are currently the biggest cause of losses in the aquaculture industry. Failure to definitively diagnose the pathogen in aquatic animals has led to an increase in the use of antibiotics and, while it may not lead to definitive treatment, has also led to the development of drug resistance. Therefore, prolonging the time of identification and diagnosis of the pathogen causes more prevalence of the disease, more losses and damages in fish farms and the resulting costs. OIE documents and various pieces of evidence i...
Journal of Fish Diseases, 2021
A lateral flow immunochromatography strip test, based on antibody-gold nanoparticles specific for... more A lateral flow immunochromatography strip test, based on antibody-gold nanoparticles specific for nervous necrosis virus (NNV), was developed for rapid, on-site detection of the virus in fish stocks. A monoclonal antibody against NNV was conjugated with colloidal gold as the detector antibody. A rabbit anti-NNV polyclonal antibody and goat anti-mouse IgG antibody were blotted onto the nitrocellulose membrane as the capture antibodies on the test line and control line, respectively. The reaction could be seen by the eye within 15 min and did not cross-react with the other viruses tested. The detection limit of the strip was approximately 103 TCID50 /ml and had good stability after storage at 4°C for 8 months. When brains of 70 naturally infected golden grey mullet, Chelon aurata, were tested with the strip test, the diagnostic specificity and sensitivity of the test compared to real-time RT-PCR were 100% and 74%, respectively. Therefore, the one-step test strip developed here had high specificity, reproducibility, and stability. This, together with its simplicity to use and rapid detection, without the requirement of sophisticated equipment or specialized skills, makes the strip suitable for pond-side detection of NNV in farmed fish.
Iranian Journal of Virology, 2019
Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and d... more Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and devastating disease of many species of cultured and marine fish worldwide. It caused by betanodaviruses a serious concern especially in the fry and young fish. This virus infects most of the cultured fishes causing severe mortality. Our current review focuses chiefly on recent studies performed on VNN disease. Recent outbreaks have been reported in China, Indonesia, Singapore and India, affecting the mariculture and aquaculture industry. It also decreased dramatically Mullet stocks in the Caspian Sea. The four main genotypes of VNN were found in all continentals’ except South America. The economic loss due to the virus is mainly due to mortality and spread of infection both vertically and horizontally. Our investigation in recent years suggest that more research and epidemiological surveys should be conducted, especially in critical areas were mariculture farms are planned to be establish...
Iranian Journal of Aquatic Animal Health, 2020
The novel pandemic disease has been evaluated as a global health emergency by the World Health Or... more The novel pandemic disease has been evaluated as a global health emergency by the World Health Organization (WHO) due to its rapid spread worldwide. In many countries, the established restrictive measures on the movement and travel have had adverse economic outcomes, including a substantial drop in both jobs and salaries, in these communities. The economic consequences of the COVID-19 have severely affected the aquatic food supply chain, i.e. the fishers, aquaculture farmers, processing, and marketing sector due to the decrease in consumer purchasing power. There is increasing evidence that the farmers are not able to sell their products which lead to the live fish stocks increasing and therefore higher costs for feeding.
Emerging and Reemerging Viral Pathogens
Abstract Koi herpesvirus (KHV) disease emerged in 1999s, and since then it has spread throughout ... more Abstract Koi herpesvirus (KHV) disease emerged in 1999s, and since then it has spread throughout the world. The disease leads to mass mortality of koi and carp, resulting in severe economic losses. Optimal temperature ranges for the KHV are between 16°C and 25°C. Keeping optimal temperature range at over 30°C is effective in reducing mortality, but survivors may become carriers of the virus. The affected fish can show a loss of color, sunken eyes, and gill necrosis. Excessive mucus on the skin and gills is frequently noticed. In some cases, inflammation and necrosis of the liver, spleen, intestinal tract, and kidney have been also observed. Diagnostic techniques for KHV diseases of fish are epidemiological investigation, disease signs, and polymerase chain reaction detection of KHV DNA. Presently, there are no antiviral drugs to treat KHV. However, there are commercially available vaccines in some areas.
Iranian Journal of Virology, 2019
Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and d... more Viral Nervous Necrosis (VNN) causes viral encephalopathy and retinopathy (VER), a hazardous and devastating disease of many species of cultured and marine fish worldwide. It caused by betanodaviruses a serious concern especially in the fry and young fish. This virus infects most of the cultured fishes causing severe mortality. Our current review focuses chiefly on recent studies performed on VNN disease. Recent outbreaks have been reported in China, Indonesia, Singapore and India, affecting the mariculture and aquaculture industry. It also decreased dramatically Mullet stocks in the Caspian Sea. The four main genotypes of VNN were found in all continentals’ except South America. The economic loss due to the virus is mainly due to mortality and spread of infection both vertically and horizontally. Our investigation in recent years suggest that more research and epidemiological surveys should be conducted, especially in critical areas were mariculture farms are planned to be establish...
Aquaculture International, 2014
ABSTRACT
Aquaculture International
ABSTRACT