Related Experiment Video
Updated: Dec 10, 2025

03:39
Author Spotlight: A Precise and Quantifiable Method for Collecting Hemolymph from Small Arthropods
Published on: April 28, 2023
2.3K
Insect virus transmission: different routes to persistence.
1Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada V5A 1S6.
Current Opinion in Insect Science
|August 28, 2020
Summary
Understanding disease transmission in natural settings is challenging. This study explores factors influencing virus transmission and their ecological and evolutionary impacts on host populations.
Area of Science:
- Disease ecology
- Virology
- Evolutionary biology
Background:
- Transmission dynamics are crucial in disease ecology but difficult to study in natural environments.
- Current knowledge is limited to specific virus groups and ecological studies.
- Advances in virus detection and understanding host behavioral manipulation are ongoing.
Purpose of the Study:
- To investigate the factors modulating disease transmission.
- To explore the dynamical and evolutionary consequences of transmission in host populations.
- To bridge the gap between theoretical frameworks and empirical evidence in disease ecology.
Main Methods:
- Review of existing literature on disease transmission.
- Analysis of theoretical frameworks for transmission strategies.
- Identification of research gaps in empirical testing.
Main Results:
- Factors influencing transmission and their consequences are complex and understudied in natural settings.
- Theoretical models exist but lack sufficient empirical validation.
- New viruses and molecular mechanisms of transmission are being discovered.
Conclusions:
- Further empirical research is needed to validate theoretical models of disease transmission.
- Integrating ecological, evolutionary, and molecular approaches is essential.
- Understanding transmission is key to managing infectious diseases in wildlife and human populations.
Related Concept Videos
Infection
11.3K
When a pathogen enters the body and reproduces, it can cause an infection, damage body cells, and cause illness symptoms that eventually lead to disease. Therefore, its prevention requires breaking the chain of infection.
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
11.3K
Viral Recombination
24.6K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
24.6K
Viruses with RNA Genomes
522
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...
522
Introduction to Virus
886
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...
886
What are Viruses?
126.6K
Overview
126.6K
Lytic Cycle of Bacteriophages
76.8K
Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
76.8K

