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Related Concept Videos

Arboviral Encephalitis01:25

Arboviral Encephalitis

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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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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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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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Encephalitis l: Introduction01:19

Encephalitis l: Introduction

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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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Methods of reducing fever01:22

Methods of reducing fever

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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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Increased Body Temperature01:25

Increased Body Temperature

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A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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Related Experiment Video

Updated: Apr 23, 2026

A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
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A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease

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Dengue eye disease.

Aaron W Ng1, Stephen C Teoh2

  • 1Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Survey of Ophthalmology
|September 17, 2014
PubMed
Summary
This summary is machine-generated.

Dengue fever can cause uncommon but significant vision problems, including hemorrhages and inflammation. Early diagnosis and management are crucial for preserving sight, though treatment effectiveness remains under investigation.

Keywords:
chorioretinitiscomplicationsdenguefoveolitishemorrhageinfectionmacular edemamaculopathyoptic neuritisuveitisviral

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Protocol for Dengue Infections in Mosquitoes A. aegypti and Infection Phenotype Determination
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Measuring Dengue Virus RNA in the Culture Supernatant of Infected Cells by Real-time Quantitative Polymerase Chain Reaction
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Measuring Dengue Virus RNA in the Culture Supernatant of Infected Cells by Real-time Quantitative Polymerase Chain Reaction
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Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Public Health

Background:

  • Dengue fever is a growing global concern due to urbanization, tourism, and trade.
  • Ocular manifestations of dengue are infrequent but clinically significant, impacting vision.
  • Mechanisms involve direct viral effects and immune responses.

Purpose of the Study:

  • To review the ocular manifestations of dengue fever.
  • To outline diagnostic and management strategies for dengue-related eye conditions.
  • To discuss the variable prognosis and treatment uncertainties.

Main Methods:

  • Literature review of ocular manifestations, diagnostics, and treatments for dengue fever.
  • Description of common clinical presentations and symptoms.
  • Summary of investigational tools like OCT and angiography.

Main Results:

  • Common ocular issues include various hemorrhages (subconjunctival, vitreous, retinal), posterior uveitis, optic neuritis, and maculopathies.
  • Key symptoms reported are blurred vision, scotomata, metamorphopsia, and floaters.
  • Diagnostic methods include OCT, angiography, visual field analysis, and electrophysiologic tests.

Conclusions:

  • Ocular complications of dengue fever require careful monitoring and management.
  • Current treatment strategies involve anti-inflammatory and immunosuppressive therapies.
  • Further research, including randomized trials, is needed to clarify disease course and treatment efficacy.