Related Experiment Video
Updated: Jul 30, 2025

07:35
Vaccinia Virus Infection & Temporal Analysis of Virus Gene Expression: Part 3
Published on: April 13, 2009
8.2K
ICTV Virus Taxonomy Profile: Poxviridae 2023
Colin J McInnes1, Inger K Damon2, Geoffrey L Smith3
1Moredun Research Institute, Penicuik, UK.
The Journal of General Virology
|May 17, 2023
Summary
Poxviridae viruses are enveloped pathogens affecting insects and vertebrates, including humans. This report summarizes the International Committee on Taxonomy of Viruses findings on this viral family.
Area of Science:
- Virology
- Microbiology
- Pathogen Research
Background:
- Poxviridae comprises enveloped viruses with linear dsDNA genomes.
- Members infect insects (Entomopoxvirinae) and vertebrates (Chordopoxvirinae).
- Poxviruses cause significant lesions and potentially fatal infections in various hosts.
Purpose of the Study:
- To summarize the International Committee on Taxonomy of Viruses (ICTV) report on the Poxviridae family.
- To provide an updated taxonomic overview of Poxviridae.
- To consolidate information on Poxviridae classification and host range.
Main Methods:
- Review of the International Committee on Taxonomy of Viruses (ICTV) Report.
- Analysis of viral taxonomy and classification.
- Synthesis of data on Poxviridae genome structure and morphology.
Main Results:
- Poxviridae classification into Entomopoxvirinae and Chordopoxvirinae subfamilies.
- Detailed description of viral genome structure (linear dsDNA, 128-375 kbp).
- Identification of host ranges including insects, mammals, birds, reptiles, and fish.
Conclusions:
- Poxviridae represent a diverse viral family with significant pathogenic potential.
- Accurate taxonomy is crucial for understanding Poxviridae biology and disease.
- The ICTV report provides a comprehensive resource for Poxviridae research.
Related Concept Videos
Viruses with RNA Genomes
60
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...
60
Retrovirus Life Cycles
46.3K
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...
46.3K
Subviral Agents
52
Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
52
What are Viruses?
115.6K
Overview
115.6K
Introduction to Virus
102
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...
102
Viruses of Archaea
34
Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
34

