The pathogenic penaeid shrimp viruses white spot syndrome virus (wSSv) and infectious hypodermal and hematopoietic necrosis virus (IhhNv) are reported for the first time from Argentina. They both occurred in wild crustaceans in Bahia Blanca Estuary, with wSSv detected by polymerase chain reaction (pCR) or real time quantitative pCR (qpCR) methods as infecting samples as high as 56% of the penae...

White spot syndrome virus (WSSV) is the most devastating virosis threatening the shrimp culture industry worldwide. Variations of environmental factors in shrimp culture ponds usually lead to the outbreak of white spot syndrome (WSS). In order to know the molecular mechanisms of WSS outbreak induced by temperature variation and the biological changes of the host at the initial stage of WSSV acu...

Currently the most common and devastating disease of shrimp is caused by the white spot syndrome virus (WSSV), which has spread throughout the world mainly by different species of crustaceans carrying the virus. Penaeus monodon were challenged with WSSV and the protein expression variation studied over a period of time. The gills, one of the main target organs of WSSV, showed upregulation of 24...

Scavenger receptors are an important class of pattern recognition receptors that play several important roles in host defense against pathogens. The class C scavenger receptors (SRCs) have only been identified in a few invertebrates, and their role in the immune response against viruses is seldom studied. In this study, we firstly identified an SRC from kuruma shrimp, Marsupenaeus japonicus, de...

For more than three decades, infectious diseases have been one of the major causes economic losses in global shrimp industry. One deadliest pathogens is white spot syndrome virus (WSSV), which mass mortality farmed shrimp. Various aspects WSSV pathogenicity studied, but this review, we will focus only on them, namely metabolic reprogramming. WSSV’s modulation host metabolism affects glycolysis,...

White spot syndrome virus (WSSV) is considered one of the most infectious and lethal viruses that affect shrimp. Bioinformatic studies revealed several G-quadruplex forming sequences at open reading frame region. Moreover, are widely conserved through all deposited WSSV sequences. Introductory structural on two sequences, namely WSSV131 WSSV172, proposed to form a quadruplex. While WSSV172 form...

OBJECTIVE To determine whether viable White Spot Syndrome virus (WSSV) or Yellowhead virus (YHV) were present in prawn products imported into Australia. PROCEDURE A sample of fourteen uncooked prawns was obtained from a consignment imported from southeast Asia. Each of the prawns was examined for WSSV by polymerase chain reaction (PCR), and then a bioassay was conducted in which a 10% homogen...

This is the first report of natural white spot syndrome virus (WSSV) infection in wild and large-scale farmed crawfish. In the spring of 2007, 3 crawfish farms experienced heavy mortality in ponds populated by Procambarus clarkii and P. zonangulus. Histological examination revealed findings consistent with severe viral infection characterized by numerous intranuclear inclusions in ectodermal an...

Southeast Asia is a significant area for world shrimp culture. However, in recent years, the production of cultured shrimp has markedly decreased as a result of serious viral disease outbreaks. Especially, the increased severity of widespread White Spot Syndrome Virus (WSSV) infection is the most serious threat to stable aquacultural production. In the case of Malaysia, outbreak of this disease...