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Related Concept Videos

Types of Fever01:25

Types of Fever

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Fever can be triggered by several factors, including infections, nervous system disorders, certain cancers, blood diseases like leukemia, embolism, thrombosis, heatstroke, dehydration, surgical trauma, crushing injuries, and allergic reactions.
Here are the different types of fever:
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Patterns of Fever01:26

Patterns of Fever

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Before understanding the types and patterns of fever, it is essential to know its phases.
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Methods of reducing fever01:22

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The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
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Dihybrid Crosses01:18

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What is Natural Selection?01:32

What is Natural Selection?

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Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
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Related Experiment Video

Updated: Feb 12, 2026

A Protocol for Collecting and Staining Hemocytes from the Yellow Fever Mosquito Aedes aegypti
08:33

A Protocol for Collecting and Staining Hemocytes from the Yellow Fever Mosquito Aedes aegypti

Published on: May 16, 2011

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Yellow fever.

Marcelo Nóbrega Litvoc1, Christina Terra Gallafrio Novaes1, Max Igor Banks Ferreira Lopes1

  • 1Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.

Revista Da Associacao Medica Brasileira (1992)
|April 12, 2018
PubMed
Summary

Yellow fever (YF) is a mosquito-borne viral disease endemic in tropical regions. Vaccination is a safe and effective prevention method, with recent outbreaks highlighting its continued public health importance.

Area of Science:

  • Medical Entomology
  • Virology
  • Epidemiology

Background:

  • Yellow fever (YF) is a Flavivirus transmitted by mosquitoes, endemic in Africa and Latin America.
  • Two forms exist: sylvatic (forest-associated) and urban (perpetuated by Aedes aegypti).
  • Brazil has experienced significant YF outbreaks, with expanding transmission areas and severe cases.

Purpose of the Study:

  • To provide an overview of yellow fever epidemiology, clinical presentation, and prevention.
  • To highlight the effectiveness and safety of the YF vaccine.
  • To discuss recent outbreaks and the challenges in managing severe YF cases.

Main Methods:

  • Literature review of YF transmission, clinical features, and prevention strategies.
  • Analysis of YF outbreak data in Brazil.

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Physiological Recordings and RNA Sequencing of the Gustatory Appendages of the Yellow-fever Mosquito Aedes aegypti
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Physiological Recordings and RNA Sequencing of the Gustatory Appendages of the Yellow-fever Mosquito Aedes aegypti

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A Protocol for Collecting and Staining Hemocytes from the Yellow Fever Mosquito Aedes aegypti
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  • Summary of YF vaccine efficacy and safety profiles.

    • Main Results:

    • YF presents with a range of symptoms from asymptomatic to severe, with high lethality in severe forms.
    • The YF vaccine is highly effective (90-98% immunogenicity) and safe.
    • Recent outbreaks in Brazil underscore the need for continued surveillance and vaccination efforts.

    Conclusions:

    • Yellow fever remains a significant public health concern, particularly in Brazil, due to expanding transmission.
    • Vaccination is the primary and most effective means of preventing yellow fever.
    • Research into antiviral therapies for severe cases is ongoing.