Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America

Baculovirus penaei (BP) is an enteric virus infecting the hepatopancreas and anterior midgut of shrimp, particularly affecting early developmental stages and contributing to hatchery losses. While BP’s role in co-infections is increasingly recognized, its impact on later life stages remains unclear....

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Main Authors: Pablo Intriago, Bolivar Montiel, Mauricio Valarezo, Nicole Cercado, Alejandra Montenegro, María Mercedes Vásquez, Melany del Barco, Yamilis Cataño
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Viruses
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Online Access:https://www.mdpi.com/1999-4915/17/3/374
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author Pablo Intriago
Bolivar Montiel
Mauricio Valarezo
Nicole Cercado
Alejandra Montenegro
María Mercedes Vásquez
Melany del Barco
Yamilis Cataño
author_facet Pablo Intriago
Bolivar Montiel
Mauricio Valarezo
Nicole Cercado
Alejandra Montenegro
María Mercedes Vásquez
Melany del Barco
Yamilis Cataño
author_sort Pablo Intriago
collection DOAJ
description Baculovirus penaei (BP) is an enteric virus infecting the hepatopancreas and anterior midgut of shrimp, particularly affecting early developmental stages and contributing to hatchery losses. While BP’s role in co-infections is increasingly recognized, its impact on later life stages remains unclear. Despite advancements in molecular diagnostics, its high genetic diversity complicates reliable detection, often leading to discrepancies between PCR results and histological observations of occlusion bodies. This study evaluated seven primer pairs for BP detection in <i>Penaeus vannamei</i>. Among histologically confirmed cases, only 6% tested positive with the BPA/BPF primer and 3% with BPA/BPB, while the remaining primers failed to amplify BP, highlighting significant diagnostic limitations. Histopathology revealed bacterial co-infections alongside BP, with advanced cases showing intranuclear occlusion bodies, hepatopancreatic necrosis, and epithelial detachment. These findings underscore the urgent need for improved molecular diagnostics to accurately assess BP prevalence, its role in co-infections, and its overall impact on shrimp health in Latin America. Further research is essential to refine detection methods and determine BP’s pathogenic significance beyond early developmental stages.
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institution Kabale University
issn 1999-4915
language English
publishDate 2025-03-01
publisher MDPI AG
record_format Article
series Viruses
spelling doaj-art-f6b407a66d2a4a8cbf5c4b8d9f6987ed2025-08-20T03:43:57ZengMDPI AGViruses1999-49152025-03-0117337410.3390/v17030374Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin AmericaPablo Intriago0Bolivar Montiel1Mauricio Valarezo2Nicole Cercado3Alejandra Montenegro4María Mercedes Vásquez5Melany del Barco6Yamilis Cataño7South Florida Farming Corp, 13811 Old Sheridan St, Southwest Ranches, FL 33330, USASouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorSouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorSouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorSouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorSouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorSouth Florida Farming Lab, Av. Miguel Yunez, Km 14.5 Via A Samborondón, Almax 3 Etapa 1-Lote 3 Bodega 2, Samborondón, Guayas, EcuadorOcéanos S.A., Centro de Producción Laboratorio, Coveñas, Sucre, ColombiaBaculovirus penaei (BP) is an enteric virus infecting the hepatopancreas and anterior midgut of shrimp, particularly affecting early developmental stages and contributing to hatchery losses. While BP’s role in co-infections is increasingly recognized, its impact on later life stages remains unclear. Despite advancements in molecular diagnostics, its high genetic diversity complicates reliable detection, often leading to discrepancies between PCR results and histological observations of occlusion bodies. This study evaluated seven primer pairs for BP detection in <i>Penaeus vannamei</i>. Among histologically confirmed cases, only 6% tested positive with the BPA/BPF primer and 3% with BPA/BPB, while the remaining primers failed to amplify BP, highlighting significant diagnostic limitations. Histopathology revealed bacterial co-infections alongside BP, with advanced cases showing intranuclear occlusion bodies, hepatopancreatic necrosis, and epithelial detachment. These findings underscore the urgent need for improved molecular diagnostics to accurately assess BP prevalence, its role in co-infections, and its overall impact on shrimp health in Latin America. Further research is essential to refine detection methods and determine BP’s pathogenic significance beyond early developmental stages.https://www.mdpi.com/1999-4915/17/3/374<i>Penaeus vannamei</i>—PvBaculovirus penaei-single enveloped nucleopolyhedron virus (BP—PvSNPV)Hepatopancreas—HPWenzhou shrimp virus 8—WzSV8Hepanhamaparvovirus—DHPVPostlarvae—PL
spellingShingle Pablo Intriago
Bolivar Montiel
Mauricio Valarezo
Nicole Cercado
Alejandra Montenegro
María Mercedes Vásquez
Melany del Barco
Yamilis Cataño
Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
Viruses
<i>Penaeus vannamei</i>—Pv
Baculovirus penaei-single enveloped nucleopolyhedron virus (BP—PvSNPV)
Hepatopancreas—HP
Wenzhou shrimp virus 8—WzSV8
Hepanhamaparvovirus—DHPV
Postlarvae—PL
title Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
title_full Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
title_fullStr Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
title_full_unstemmed Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
title_short Co-Infection Dynamics of Baculovirus Penaei (BP–PvSNPV) in <i>Penaeus vannamei</i> Across Latin America
title_sort co infection dynamics of baculovirus penaei bp pvsnpv in i penaeus vannamei i across latin america
topic <i>Penaeus vannamei</i>—Pv
Baculovirus penaei-single enveloped nucleopolyhedron virus (BP—PvSNPV)
Hepatopancreas—HP
Wenzhou shrimp virus 8—WzSV8
Hepanhamaparvovirus—DHPV
Postlarvae—PL
url https://www.mdpi.com/1999-4915/17/3/374
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