Title : FAO Warns of Tilapia Virus as Outbreak Spreads
link : FAO Warns of Tilapia Virus as Outbreak Spreads
FAO Warns of Tilapia Virus as Outbreak Spreads
An emerging viral disease observed in both wild and farmed tilapia could impact global food security and nutrition if biosafety measures are not introduced, the UN Food and Agriculture Organization (FAO) and other organisations have warned.
The warning appeared in a special alert issued by FAO (May 26). Tilapia lake virus (TiLV) was first detected in Israel in 2009, but was only confirmed as a new disease in 2014. Cases have since been reported in other parts of the world.
“All countries culturing tilapia and especially those translocating live tilapia should be vigilant about the disease and take appropriate risk management measures to reduce the likelihood of imported stocks being infected with TiLV,” Melba Reantaso, aquaculture officer at the FAO, tells SciDev.Net.
According to research, TiLV has been reported in five countries so far: Colombia, Ecuador, Egypt, Israel and Thailand. Outbreaks in Thailand have wiped out 90 per cent of tilapia stocks.
TiLV is part of the Orthomyxoviridae family of viruses, which is related to the anaemia virus that has heavily damaged the salmon farming industry. It is not known to infect humans.
Fish infected with TiLV often display sluggishness, lesions of the skin, eye abnormalities and lens opacity. However, there are still knowledge gaps, such as whether passive carriers of the infection can transmit the virus and whether infections through frozen tilapia products are possible.
Vishnumurthy Mohan Chadag, a senior scientist at WorldFish, an international non-profit research organisation, tells SciDev.Net that countries vulnerable to the TiLV virus need to put in place monitoring and surveillance strategies.
Building awareness about TiLV in all sectors of the value chain is also important, says Chadag, with special attention given to small-scale farmers with limited access to knowledge and information.
At the international level, mobilisation is already underway between various stakeholders to assist affected countries and get them to adopt biosecurity measures that include requirements to report unusual fish mortality and restrictions on the movement of live fish. Efforts are also underway to develop a vaccine
The warning appeared in a special alert issued by FAO (May 26). Tilapia lake virus (TiLV) was first detected in Israel in 2009, but was only confirmed as a new disease in 2014. Cases have since been reported in other parts of the world.
“All countries culturing tilapia and especially those translocating live tilapia should be vigilant about the disease and take appropriate risk management measures to reduce the likelihood of imported stocks being infected with TiLV,” Melba Reantaso, aquaculture officer at the FAO, tells SciDev.Net.
Tilapia is a common name for hundreds of species of the tilapiine cichlid fish, and its name comes from the cichlid genus Tilapia. It is the most popular farmed fish in the world, after carp and salmon.“All countries culturing tilapia and especially those translocating live tilapia should be vigilant about the disease.” Melba Reantaso, UN Food and Agriculture Organization
According to research, TiLV has been reported in five countries so far: Colombia, Ecuador, Egypt, Israel and Thailand. Outbreaks in Thailand have wiped out 90 per cent of tilapia stocks.
TiLV is part of the Orthomyxoviridae family of viruses, which is related to the anaemia virus that has heavily damaged the salmon farming industry. It is not known to infect humans.
Fish infected with TiLV often display sluggishness, lesions of the skin, eye abnormalities and lens opacity. However, there are still knowledge gaps, such as whether passive carriers of the infection can transmit the virus and whether infections through frozen tilapia products are possible.
Vishnumurthy Mohan Chadag, a senior scientist at WorldFish, an international non-profit research organisation, tells SciDev.Net that countries vulnerable to the TiLV virus need to put in place monitoring and surveillance strategies.
Building awareness about TiLV in all sectors of the value chain is also important, says Chadag, with special attention given to small-scale farmers with limited access to knowledge and information.
At the international level, mobilisation is already underway between various stakeholders to assist affected countries and get them to adopt biosecurity measures that include requirements to report unusual fish mortality and restrictions on the movement of live fish. Efforts are also underway to develop a vaccine
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