Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Infection01:20

Infection

11.1K
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...
11.1K
Intracellular Movement of Viruses and Bacteria01:10

Intracellular Movement of Viruses and Bacteria

3.3K
Intracellular bacteria and viruses often comprise a group of highly infectious pathogens that can cause several diseases. Bacterial pathogens include those belonging to the genus Rickettsia responsible for conditions such as rocky mountain spotted fever and the Mediterranean spotted fever; Chlamydia, a genus responsible for a sexually transmitted disease; Coxiella burnetii, an agent responsible for Q fever. Viral pathogens include vaccinia—a poxvirus, and herpes simplex virus—a...
3.3K
Symbiosis00:58

Symbiosis

36.4K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
36.4K
Viral Recombination00:57

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
Gene Flow02:39

Gene Flow

37.0K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
37.0K
Bacterial Phylum Chlamydiae01:29

Bacterial Phylum Chlamydiae

310
The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic...
310

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Field evaluation of novel experimental nootkatone-based products for control of Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae).

Journal of medical entomology·2026
Same author

Surveillance for Metastriate Ticks and Spotted Fever Group Rickettsioses in Southern Illinois.

The American journal of tropical medicine and hygiene·2026
Same author

Bayesian Multivariate Modelling of Lone Star (<i>Amblyomma americanum</i>) Tick Life Stage Abundance and Temporal Trends to Inform Public Health Risk in Virginia.

International journal of environmental research and public health·2026
Same author

Tularemia in New York, USA, 1993-2023.

Emerging infectious diseases·2026
Same author

Tick responses to diverse chemical attractants to enhance tick surveillance methods' efficacy.

Ticks and tick-borne diseases·2025
Same author

A SIMPL Model of Phage-Bacteria Interactions Accounting for Mutation and Competition.

Bulletin of mathematical biology·2025

Related Experiment Video

Updated: Dec 6, 2025

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing
07:21

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Published on: August 25, 2018

13.2K

Dynamics of two pathogens in a single tick population.

Alexis White1, Elsa Schaefer2, Chelsea Wright Thompson1

  • 1Department of Biological Sciences, Old Dominion University, Norfolk, Virginia, USA.

Letters in Biomathematics
|October 5, 2020
PubMed
Summary

A mathematical model explored pathogen invasion in the American dog tick (Amblyomma americanum). Results show Rickettsia parkeri may not persist beyond 3 years when Rickettsia amblyommatis is established.

Keywords:
CompetitionInvasion reproductive numbersPathogenTicksVector-borne disease

More Related Videos

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)
03:22

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Published on: October 31, 2025

386
Visualization of Microbiota in Tick Guts by Whole-mount In Situ Hybridization
08:30

Visualization of Microbiota in Tick Guts by Whole-mount In Situ Hybridization

Published on: June 1, 2018

9.9K

Related Experiment Videos

Last Updated: Dec 6, 2025

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing
07:21

Tick Microbiome Characterization by Next-Generation 16S rRNA Amplicon Sequencing

Published on: August 25, 2018

13.2K
Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)
03:22

Extraction of Saliva, Haemolymph, Salivary Glands, and Midgut from Individual Ticks (Acari: Ixodidae)

Published on: October 31, 2025

386
Visualization of Microbiota in Tick Guts by Whole-mount In Situ Hybridization
08:30

Visualization of Microbiota in Tick Guts by Whole-mount In Situ Hybridization

Published on: June 1, 2018

9.9K

Area of Science:

  • Ecology and Vector-Borne Disease Dynamics
  • Mathematical Modeling in Epidemiology
  • Tick-Pathogen Interactions

Background:

  • The American dog tick (Amblyomma americanum) can harbor multiple pathogens.
  • Understanding pathogen competition is crucial for predicting disease spread.

Purpose of the Study:

  • To model the persistence of Rickettsia parkeri invading a tick population already containing Rickettsia amblyommatis.
  • To identify conditions for the coexistence of these two Rickettsia species in Amblyomma americanum.

Main Methods:

  • Developed a mathematical model for a two-pathogen, one-tick, one-host system.
  • Performed numerical simulations and sensitivity analysis.
  • Applied the model to field and laboratory data from a Virginia site.

Main Results:

  • Identified parameter ranges enabling the coexistence of R. parkeri and R. amblyommatis.
  • Transmission rates significantly impact pathogen persistence and invasion success.
  • R. parkeri is predicted to persist for less than 3 years in the studied population.

Conclusions:

  • Mathematical modeling provides insights into tick-borne pathogen dynamics.
  • Coexistence thresholds and transmission rates are key factors in pathogen persistence.
  • Findings aid public health officials in understanding and managing tick-borne diseases.