First Molecular Confirmation of Equine Ocular <i>Setaria digitata</i> in China

A 5-year-old Mongolian mare (<i>Equus caballus </i>Linnaeus, 1758) was observed to have corneal opacity and excessive ocular discharge. An ophthalmic examination revealed a moving thread-like cylindrical worm in the anterior chamber of the right eye. The parasite was successfully removed...

Full description

Bibliographic Details
Main Authors: Feng Yu, Bo Liu, Shulei Chen, Ziwen Yi, Xianyong Liu, Yiping Zhu, Jing Li
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Veterinary Sciences
Subjects:
Online Access:https://www.mdpi.com/2306-7381/8/4/55
Description
Summary:A 5-year-old Mongolian mare (<i>Equus caballus </i>Linnaeus, 1758) was observed to have corneal opacity and excessive ocular discharge. An ophthalmic examination revealed a moving thread-like cylindrical worm in the anterior chamber of the right eye. The parasite was successfully removed surgically. The worm was observed under light microscopy and confirmed as <i>Setaria digitata</i> by 12S rRNA gene amplification and sequencing. Phylogenetic analysis demonstrated similarity with <i>Setaria digitata</i> in the National Center for Biotechnology Information (NCBI) GenBank database isolated from other Asian countries. This report is the first confirmed case of equine ocular setariasis by molecular diagnosis in China, which may indicate its presence in livestock and promote research on its epidemiology.
ISSN:2306-7381