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Related Concept Videos

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...
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...
Malaria01:29

Malaria

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...
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...
Principles of Disease Surveillance01:26

Principles of Disease Surveillance

Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...

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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

Dengue: a continuing global threat.

Maria G Guzman1, Scott B Halstead, Harvey Artsob

  • 1Instituto de Medicina Tropical, 'Pedro Kouri', PO Box 601, Marianao 13, Ciucad de la Habana, Cuba.

Nature Reviews. Microbiology
|November 17, 2010
PubMed
Summary
This summary is machine-generated.

Dengue fever, a viral illness, affects millions globally each year. Integrated vector management, early diagnosis, and future vaccines are key to controlling this mosquito-borne disease.

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Area of Science:

  • Arbovirology
  • Infectious Diseases
  • Public Health

Background:

  • Dengue fever and dengue hemorrhagic fever are significant arthropod-borne viral diseases.
  • Approximately 50 million dengue infections and 500,000 hospitalizations occur annually, primarily in Southeast Asia, the Pacific, and the Americas.
  • All four dengue virus serotypes can cause illness.

Purpose of the Study:

  • To outline a global strategy for dengue control.
  • To emphasize the importance of integrated approaches for disease management.

Main Methods:

  • Advocacy for enhanced surveillance and outbreak response capacity.
  • Promotion of behavioral changes.
  • Implementation of integrated vector management strategies.
  • Emphasis on early and accurate diagnosis.

Main Results:

  • A comprehensive global strategy for dengue control has been proposed.
  • The strategy integrates vector management, behavioral changes, and diagnostics.
  • Future contributions from antiviral drugs and vaccines are anticipated.

Conclusions:

  • Integrated vector management, improved diagnostics, and behavioral changes are crucial for reducing the dengue disease burden.
  • Ongoing development of antiviral drugs and vaccines holds promise for future dengue control efforts.