Taura Syndrome is a viral disease of major health and economic importance to the shrimp industry, caused by the Shrimp Taura Syndrome Virus (TSV), which belongs to the Dicistroviridae family. The disease primarily affects penaeid shrimp, particularly Litopenaeus vannamei, and is responsible for high mortality rates and significant losses in aquaculture production.
TSV is a small, non-enveloped virus that is highly resistant to environmental conditions, which facilitates its spread in intensive farming systems. Transmission occurs predominantly through horizontal transmission, via contact with infected shrimp, contaminated water, cannibalism, and fomites such as equipment and tools used in pond management.
The disease can manifest as an acute, chronic, or transitional form, depending on the stage of cultivation and the susceptibility of the animals. In the acute phase, symptoms include lethargy, reduced feed intake, changes in body and tail coloration, and high mortality. Surviving shrimp may progress to the chronic form, acting as virus carriers.
Lesions associated with Taura Syndrome primarily affect the cuticular and epithelial tissues, causing necrosis and desquamation, which impair the growth and survival of shrimp. The presence of carrier animals in the system poses a constant risk of maintaining and spreading the infection.
Prevention of Taura Syndrome relies on the strict implementation of biosecurity measures, including the use of specific pathogen-free (SPF) post-larvae, water quality control, disinfection of ponds and equipment, and proper management practices to reduce stress in the animals.
Laboratory diagnosis is essential for the early detection of TSV and for monitoring the health of livestock. Molecular methods, such as real-time PCR, are widely used due to their high sensitivity and specificity, allowing for the rapid identification of the virus even in asymptomatic animals.
Continuous epidemiological surveillance, combined with the implementation of biosecurity programs and regular diagnostic testing, is essential for controlling Taura Syndrome. These measures help reduce production losses, ensure the sustainability of shrimp farming, and safeguard the health of the aquaculture supply chain.
In this context, Bioperfectus’ rapid test for Taura Syndrome Virus (TSV) serves as a strategic screening tool to support disease surveillance in shrimp farming. The use of the rapid test allows for the rapid identification of suspicious shrimp or batches directly in the field or during routine monitoring, enabling the immediate adoption of containment measures, such as isolating ponds, restricting the movement of animals, and strengthening biosecurity practices. Thus, the rapid test complements confirmatory molecular methods, contributing to the early detection of TSV, the reduction of viral spread, and the strengthening of Taura Syndrome prevention and control strategies.
