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Related Concept Videos

Yellow Fever01:18

Yellow 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...
Infectious Diseases and Their Occurrence01:28

Infectious 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...
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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...
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Influenza

Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
Arboviral Encephalitis01:25

Arboviral 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...
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Updated: Jun 30, 2026

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1
06:18

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

Published on: March 13, 2018

Chikungunya Outbreak, Cuba, July 2025.

Melissa M Perez, Sonia Resik, Berta Maria Bello Rodriguez

    Emerging Infectious Diseases
    |June 28, 2026
    PubMed
    Summary
    This summary is machine-generated.

    Chikungunya virus transmission is confirmed in Cuba. The East/Central/South African genotype, linked to Brazil 2025 strains, was detected in patients and mosquitoes, indicating potential regional spread.

    Keywords:
    ChikungunyaCubaECSA genotypeoutbreakvector-borne infectionsviruses

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    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
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    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

    Published on: May 31, 2020

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    Last Updated: Jun 30, 2026

    Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1
    06:18

    Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

    Published on: March 13, 2018

    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus
    10:35

    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

    Published on: May 31, 2020

    Area of Science:

    • Medical Entomology
    • Virology
    • Epidemiology

    Background:

    • Chikungunya virus (CHIKV) poses a significant public health threat globally.
    • Vector-borne diseases require continuous surveillance for early detection and control.

    Purpose of the Study:

    • To confirm and characterize Chikungunya virus transmission in Perico, Matanzas Province, Cuba.
    • To identify the specific genotype of CHIKV and its potential source.

    Main Methods:

    • Detection of CHIKV RNA in human serum samples.
    • Identification of CHIKV in Aedes aegypti mosquito pools.
    • Genotyping of the detected CHIKV strains.

    Main Results:

    • Chikungunya virus transmission was confirmed in Perico, Cuba.
    • The East/Central/South African genotype of CHIKV was identified.
    • The detected genotype showed genetic relatedness to Brazil 2025 strains.
    • CHIKV was present in both human samples and local Aedes aegypti mosquitoes.

    Conclusions:

    • The findings confirm CHIKV circulation in Cuba.
    • The identified genotype suggests a potential link to recent outbreaks in the Americas.
    • Enhanced surveillance is crucial to monitor and prevent further spread of Chikungunya in the region.