Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994
Heart and skeletal muscle inflammation (HSMI) caused by Piscine orthoreovirus (PRV) was first described in farmed Atlantic salmon in Chile in 2011. However, as PRV induces long-lasting infections, it is not known when Chilean farmed salmon may have started to show PRV positivity. This study aimed to...
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ftmdpi:oai:mdpi.com:/2410-3888/8/5/229/ 2023-08-20T04:05:15+02:00 Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 Marco Rozas-Serri Ricardo Ildefonso Victoria Jaramillo Estefanía Peñaloza Camila Leiva Soraya Barrientos Darling Coñuecar Lucerina Maldonado Ariel Muñoz Andrea Peña Felipe Aranis Carolina Senn agris 2023-04-26 application/pdf https://doi.org/10.3390/fishes8050229 EN eng Multidisciplinary Digital Publishing Institute Welfare, Health and Disease https://dx.doi.org/10.3390/fishes8050229 https://creativecommons.org/licenses/by/4.0/ Fishes; Volume 8; Issue 5; Pages: 229 Atlantic salmon PRV-1 PRV-1a HSMI FFPE Chile Text 2023 ftmdpi https://doi.org/10.3390/fishes8050229 2023-08-01T09:51:04Z Heart and skeletal muscle inflammation (HSMI) caused by Piscine orthoreovirus (PRV) was first described in farmed Atlantic salmon in Chile in 2011. However, as PRV induces long-lasting infections, it is not known when Chilean farmed salmon may have started to show PRV positivity. This study aimed to evaluate the presence/absence of PRV-1 in formalin-fixed, paraffin-embedded Atlantic salmon heart tissues (FFPE) cultured in Chile during 1992 and 1999. The most frequent histopathological findings in the 42 FFPE blocks were mild focal cardiomyocyte degeneration (57.1%) and a mild focal mononuclear inflammatory infiltrate (21.4%) in the ventricular stratum spongiosum of the heart. One of the 42 heart samples analyzed by RT-qPCR was positive for PRV-1 (2.4%). All samples were negative for other viral and bacterial pathogens that can induce similar histological changes in the heart. Taken together, our results show that PRV-1 has been present in Chile—as a low-virulence genogroup—since at least 1994, 17 years before the first HSMI outbreak in 2011. Finally, archaeovirology can be a valid alternative to contribute to the understanding of the epidemiology of diseases in aquaculture. Text Atlantic salmon MDPI Open Access Publishing Fishes 8 5 229 |
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Open Polar |
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MDPI Open Access Publishing |
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English |
topic |
Atlantic salmon PRV-1 PRV-1a HSMI FFPE Chile |
spellingShingle |
Atlantic salmon PRV-1 PRV-1a HSMI FFPE Chile Marco Rozas-Serri Ricardo Ildefonso Victoria Jaramillo Estefanía Peñaloza Camila Leiva Soraya Barrientos Darling Coñuecar Lucerina Maldonado Ariel Muñoz Andrea Peña Felipe Aranis Carolina Senn Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
topic_facet |
Atlantic salmon PRV-1 PRV-1a HSMI FFPE Chile |
description |
Heart and skeletal muscle inflammation (HSMI) caused by Piscine orthoreovirus (PRV) was first described in farmed Atlantic salmon in Chile in 2011. However, as PRV induces long-lasting infections, it is not known when Chilean farmed salmon may have started to show PRV positivity. This study aimed to evaluate the presence/absence of PRV-1 in formalin-fixed, paraffin-embedded Atlantic salmon heart tissues (FFPE) cultured in Chile during 1992 and 1999. The most frequent histopathological findings in the 42 FFPE blocks were mild focal cardiomyocyte degeneration (57.1%) and a mild focal mononuclear inflammatory infiltrate (21.4%) in the ventricular stratum spongiosum of the heart. One of the 42 heart samples analyzed by RT-qPCR was positive for PRV-1 (2.4%). All samples were negative for other viral and bacterial pathogens that can induce similar histological changes in the heart. Taken together, our results show that PRV-1 has been present in Chile—as a low-virulence genogroup—since at least 1994, 17 years before the first HSMI outbreak in 2011. Finally, archaeovirology can be a valid alternative to contribute to the understanding of the epidemiology of diseases in aquaculture. |
format |
Text |
author |
Marco Rozas-Serri Ricardo Ildefonso Victoria Jaramillo Estefanía Peñaloza Camila Leiva Soraya Barrientos Darling Coñuecar Lucerina Maldonado Ariel Muñoz Andrea Peña Felipe Aranis Carolina Senn |
author_facet |
Marco Rozas-Serri Ricardo Ildefonso Victoria Jaramillo Estefanía Peñaloza Camila Leiva Soraya Barrientos Darling Coñuecar Lucerina Maldonado Ariel Muñoz Andrea Peña Felipe Aranis Carolina Senn |
author_sort |
Marco Rozas-Serri |
title |
Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
title_short |
Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
title_full |
Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
title_fullStr |
Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
title_full_unstemmed |
Piscine Orthoreovirus-1 (PRV-1) Has Been Present in Chilean Salmon Aquaculture since at Least 1994 |
title_sort |
piscine orthoreovirus-1 (prv-1) has been present in chilean salmon aquaculture since at least 1994 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/fishes8050229 |
op_coverage |
agris |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Fishes; Volume 8; Issue 5; Pages: 229 |
op_relation |
Welfare, Health and Disease https://dx.doi.org/10.3390/fishes8050229 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/fishes8050229 |
container_title |
Fishes |
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8 |
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5 |
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229 |
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1774715743819005952 |