Related Experiment Video
Updated: Jun 6, 2026
10:35
Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
Published on: May 31, 2020
The chikungunya disease: modeling, vector and transmission global dynamics
D Moulay1, M A Aziz-Alaoui, M Cadivel
1Laboratoire de Mathématiques Appliquées, Université du Havre, 25 rue Philippe Lebon, B.P. 540, 76058 Le Havre Cedex, France. djamila.moulay@univ-lehavre.fr
Mathematical Biosciences
|November 13, 2010
Summary
This study models chikungunya virus transmission by Aedes mosquitoes to humans. Mathematical analysis of mosquito population dynamics and disease spread provides insights into controlling this uncommon tropical arbovirus.
Area of Science:
- Epidemiology
- Mathematical Biology
- Arbovirology
Background:
- Chikungunya virus is an alpha arbovirus first identified in 1953.
- It is transmitted by Aedes mosquitoes, causing an uncommon acute tropical disease.
- Understanding transmission dynamics is crucial for public health interventions.
Purpose of the Study:
- To develop and analyze mathematical models for chikungunya virus transmission.
- To investigate the dynamics of Aedes mosquito populations.
- To study the spread of chikungunya virus to human populations.
Main Methods:
- Utilized mathematical modeling to describe mosquito population dynamics.
- Developed models for virus transmission from mosquitoes to humans.
- Employed Lyapunov functions and competitive systems theory for stability analysis.
Main Results:
- Provided a global analysis of model equilibria.
- Investigated the stability of periodic orbits in the transmission model.
- Offered insights into the long-term behavior of chikungunya virus transmission.
Conclusions:
- Mathematical models are valuable tools for understanding chikungunya virus epidemiology.
- Analysis of mosquito population dynamics and transmission pathways is essential.
- The study contributes to the knowledge base for managing arbovirus outbreaks.
Related Concept Videos
01:25Arboviral Encephalitis
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
01:29Malaria
Malaria pathogenesis in humans reflects a delicate interplay between parasite biology and host response. Clinical illness reflects a host’s immune response to the parasite’s asexual replication cycle, which is often asymptomatic in individuals with partial immunity. From the parasite's perspective, transmission between mosquito and human with minimal host pathology is evolutionarily advantageous. Among the six Plasmodium species infecting humans, P. falciparum and P. vivax dominate in global...
01:22American Trypanosomiasis
Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
01:18Yellow Fever
Yellow fever is a viral hemorrhagic disease caused by the yellow fever virus (YFV), a member of the Flaviviridae family. It is transmitted primarily by Aedes and Haemagogus mosquitoes in tropical and subtropical regions of Africa and South America. After transmission through a mosquito bite, the virus initially replicates in skin-resident immune cells such as dendritic cells and macrophages. These cells then migrate to the lymph nodes, where viral replication increases, eventually leading to...
01:24Transmission of Pathogens
Pathogens spread from their reservoirs to susceptible hosts through three main routes: contact transmission, vehicle transmission, and vector transmission. Each route involves distinct mechanisms of transfer.Contact TransmissionThis category includes direct contact, indirect contact, and droplet transmission:Direct contact involves immediate physical interaction between individuals—such as a handshake—which can spread pathogens like Streptococcus pyogenes, the bacterium responsible for...
01:28Infectious Diseases and Their Occurrence
Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...