Nocardia seriolae and Streptococcus iniae Co‐Infection in Cultured Fourfinger threadfin, Eleutheronema tetradactylum , in Singapore
Year: 2025
Type: article
Abstract: ABSTRACT Between April and May 2021, two batches of diseased fourfinger threadfin ( Eleutheronema tetradactylum ) from an open‐sea net cage farm were submitted for diagnostic post‐mortem examination. Necropsy and histopathology identified necrosis within multiple organs with intralesional Gram‐positive, branching, beaded filamentous bacilli suggestive of Nocardia species. Intralesional Gram‐positive cocci were also observed within the heart sections. These Gram‐positive bacilli and cocci were subsequently confirmed to be Nocardia seriolae and Streptococcus iniae , respectively, through isolation, PCR and sequencing. This is the first report from Singapore of N. seriolae and S. iniae co‐infection and outbreak in cultured fourfinger threadfin.
Source: Aquaculture Fish and Fisheries
DOI: 10.1002/aff2.70038
Authors: Biyun Ching, Xuan Hui Teo, Christine Hui En Lee, Alvin Wee, Angeline Lua, Yih Hong Tay, Wai Kwan Wong, Charlene Judith Fernandez, Diana Chee, Kelvin Lim, Siow Foong Chang
Institution: National Parks Board
Language: English
Subfield: Immunology
Field: Immunology and Microbiology
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,200
Funder: National Parks Board - Singapore
OpenAlex ID: W4409203448