Related Experiment Video
Updated: Aug 23, 2025

09:50
Single Cell Micro-aspiration as an Alternative Strategy to Fluorescence-activated Cell Sorting for Giant Virus Mixture Separation
Published on: October 27, 2019
7.1K
Jingmenviruses: Ubiquitous, understudied, segmented flavi-like viruses
Agathe M G Colmant1, Rémi N Charrel1, Bruno Coutard1
1Unité des Virus Émergents (UVE: Aix-Marseille Univ-IRD 190-Inserm 1207), Marseille, France.
Frontiers in Microbiology
|October 27, 2022
Summary
Jingmenviruses, related to flaviviruses, are emerging viruses with segmented genomes found globally in diverse hosts. Further research is crucial to understand their potential as pandemic threats.
Area of Science:
- Virology
- Emerging Infectious Diseases
Background:
- Jingmenviruses, unclassified Flaviviridae, possess unique segmented genomes.
- The Jingmen tick virus (JMTV) was first identified in China in 2010.
- These viruses show similarities to flaviviruses in protein structure.
Purpose of the Study:
- To review the current understanding of jingmenviruses.
- To highlight their potential as emerging pandemic threats.
- To identify knowledge gaps in jingmenvirus research.
Main Methods:
- Literature review of metagenomics studies.
- Analysis of phylogenetic data.
- Compilation of epidemiological and host association data.
Main Results:
- Jingmenviruses are classified into two clades: tick/vertebrate-associated and insect-associated.
- Detected in various arthropods, vertebrates (including humans), plants, and fungi worldwide.
- Over a hundred human cases of febrile illness linked to jingmenviruses reported in China and Serbia.
Conclusions:
- Jingmenviruses fit the definition of emerging viruses with pandemic potential.
- Significant gaps exist in understanding their replication, transmission, and epidemiology.
- Prioritizing research is essential for preparedness against potential human and veterinary outbreaks.
More Related Videos
Related Concept Videos
Viruses with RNA Genomes
90
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
90
Size and Structure of Viral Genomes
106
Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
106
What are Viruses?
116.0K
Overview
116.0K
Introduction to Virus
147
Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
147
Retrovirus Life Cycles
46.5K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
46.5K
Retroviruses
12.6K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
12.6K

