Identification and genomic characterization of Baculovirus penaei in Litopenaeus vannamei in Taiwan.
J Fish Dis
; 46(6): 611-617, 2023 Jun.
Article
em En
| MEDLINE
| ID: mdl-36848405
ABSTRACT
Baculovirus penaei (BP), the causative agent of tetrahedral baculovirosis, causes the death of penaeid genera at the larval and post-larval stages. BP has been reported in the Western Pacific, South-East Atlantic, and the State of Hawaii, but never in Asia. The clinical features of BP infection are non-specific, and diagnosis relies on histological and molecular methods. In the present study, we report the first identification of BP infection in a shrimp farm in Northern Taiwan in 2022. Histopathologically, several tetrahedral eosinophilic intranuclear occlusion bodies were observed in or budding out of the nuclei of the degenerative hepatopancreatic cells. In situ hybridization and polymerase chain reaction confirmed tetrahedral baculovirosis infection caused by BP. Sequence alignment of the TW BP-1 with the USA BP strain reported in 1995 revealed 94.81% identity in the partial gene. The possibility of the emergence of USA-like BP in Taiwan highlights the importance of further epidemiological investigations on the prevalence and impact of BP in Asia.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article