Emergence of Decapod iridescent virus 1 in cultured shrimp from Taiwan in 2020.

ABSTRACT:

Objectives

This study was to identify and characterize Decapod iridescent virus 1 (DIV1) in the outbreaks reported in two whiteleg shrimp farms and one black tiger shrimp farm located in northern Taiwan in 2020.

Methods

The histopathology, electron microscopy and polymerase chain reaction (PCR) specific for the DIV1 were used to identify the virus, and the phylogenetic analysis was performed by comparing the major capsid protein gene fragment of DIV1s from Taiwan with reference sequences of the family Iridoviridae.

Results

DIV1 was identified by diagnostic PCR and caused mild mortality (20%) in cultured Penaeus monodon and high mortality (100%) in cultured whiteleg shrimp. Cultured P. monodon was first found to be infected with DIV1 through natural route of infection.

SUBMITTER: Yiping L 

PROVIDER: S-EPMC10508494 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature