Enhancing national and regional capacities to deal with Tilapia lake virus
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Tilapia lake virus (TiLV) is a recently described disease affecting wild and farmed tilapines. Tilapias are farmed globally and are the second most important aquaculture species in terms of volumes produced, providing a key source of affordable animal protein, income to fish farmers and fishers, and domestic and export earnings.
Infection with TiLV has caused extremely variable mortalities (ranging from 0 to 90 percent ) and may pose a great threat to the tilapia sector.
The virus was first recognized in Israel in 2011 and was assumed to be linked to previously unexplained outbreaks in Israel in 2009. At present, it has been reported in three continents (Asia, Africa and South America) and the number of countries where the agent has been detected is likely to increase rapidly as a result of increased awareness, surveillance and availability of diagnostic methods.
While there is no public health concern for this pathogen, there is a significant risk of TiLV being translocated both inter- and intra-continentally through the movement of infected live tilapias in the absence of appropriate biosecurity measures.
FAO monitors TiLV, provides technical assistance and works with FAO member governments and their constituents as well as development partners and searches for resources to support the tilapia sector and the communities dependent on it.