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Diseases of Aquatic Organisms

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DAO 77:83-86 (2007)  -  DOI: https://doi.org/10.3354/dao01835

Detection of Laem-Singh virus (LSNV) in cultured Penaeus monodon from India

B. K. Prakasha1, Raju P. Ramakrishna2, Indrani Karunasagar1,*, Iddya Karunasagar1

1Department of Fishery Microbiology, Karnataka Veterinary, Animal and Fisheries Sciences University, College of Fisheries, Mangalore 575 002, India
2State Institute of Fisheries Technology, Kakinada, Andhra Pradesh 533 002, India
*Corresponding author. Email:

ABSTRACT: Viral diseases have become a major constraint on the growth of shrimp aquaculture in India. During a study of new diseases in cultured tiger shrimp Penaeus monodon, diseased samples randomly collected from the southwestern and southeastern coasts of India were analyzed for white spot syndrome virus (WSSV), monodon baculovirus (MBV), and hepatopancreatic parvovirus (HPV) by nested PCR, and for Laem-Singh virus (LSNV) by reverse transcription PCR (RT-PCR). Of the 56 samples analyzed, 3 were positive for LSNV. These samples had signs of loose shell syndrome (LSS). Of the 3 samples that tested positive for LSNV, 2 were also positive for WSSV and MBV, and of these 2 samples, 1 was also positive for HPV. This is the first reported presence of LSNV in cultured shrimp in India.


KEY WORDS: Laem-Singh virus · Loose shell syndrome · Penaeus monodon · Reverse transcription PCR (RT-PCR)


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Cite this article as: Prakasha BK, Ramakrishna RP, Karunasagar I, Karunasagar I (2007) Detection of Laem-Singh virus (LSNV) in cultured Penaeus monodon from India. Dis Aquat Org 77:83-86. https://doi.org/10.3354/dao01835

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