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Novel Serotype of Epizootic Hemorrhagic Disease Virus, China
Emerging Infectious Diseases
|November 21, 2020
Insights
A novel epizootic hemorrhagic disease virus (EHDV) serotype was identified in China in 2018. This discovery expands our understanding of EHDV diversity and its potential impact on animal health.
Area of Science:
- Veterinary Virology
- Animal Health
- Molecular Epidemiology
Background:
- Epizootic hemorrhagic disease virus (EHDV) is a significant pathogen affecting livestock.
- Previous EHDV serotypes have been documented globally.
- Surveillance for novel viral strains is crucial for disease control.
Purpose of the Study:
- To characterize a newly isolated EHDV strain from China.
- To determine if the isolated virus represents a known or novel EHDV serotype.
- To contribute to the understanding of EHDV genetic diversity.
Main Methods:
- Isolation of the virus from a sentinel calf.
- Whole-genome nucleotide sequencing.
- Serological neutralization tests.
Main Results:
- A novel EHDV strain, YNDH/V079/2018, was successfully isolated in 2018.
- Sequence analysis confirmed its unique genetic makeup.
- Neutralization tests demonstrated it is antigenically distinct from previously known serotypes.
Conclusions:
- The isolated YNDH/V079/2018 strain represents a previously unreported serotype of EHDV.
- This finding highlights the emergence of new viral variants.
- Further research is needed to assess the pathogenicity and distribution of this novel serotype.
Abstract:
In 2018, a strain of epizootic hemorrhagic disease virus (EHDV), named YNDH/V079/2018, was isolated from a sentinel calf in Mangshi County, Yunnan Province, China. Nucleotide sequencing and neutralization tests indicated that the virus belongs to a novel serotype of EHDV that had not been reported previously.
