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Related Concept Videos

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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Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

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Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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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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Viral Meningitis01:18

Viral Meningitis

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Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
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Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

12
Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
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Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

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Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
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Measles-induced encephalitis.

D L Fisher1, S Defres2, T Solomon3

  • 1From the Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Institute of Infection and Global Health, University of Liverpool, Royal Liverpool University and Broadgreen NHS Trust, NIHR Health Protection Research Unit in Emerging and Zoonotic Infections and The Walton Centre Neurology NHS Foundation Trust, Liverpool, L9 7LJ UK Ha09113@qmul.ac.uk.

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Summary
This summary is machine-generated.

Measles virus infection frequently causes encephalitis, a serious neurological complication. This review details the four types of measles-induced encephalitis, their symptoms, and diagnostic considerations for healthcare workers.

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Area of Science:

  • Neurology
  • Infectious Diseases
  • Virology

Background:

  • Measles virus infection is a significant cause of neurological complications.
  • Encephalitis is the most common neurological complication associated with measles.
  • Early symptoms of encephalitis can be non-specific, potentially delaying diagnosis.

Purpose of the Study:

  • To review the pathophysiology of measles virus infection.
  • To describe the presentations, diagnosis, and treatment of four types of measles-induced encephalitis.
  • To highlight key symptoms for early suspicion of measles-induced encephalitis.

Main Methods:

  • Literature review of measles virus infection and encephalitis.
  • Examination of primary measles encephalitis, acute post-measles encephalitis, measles inclusion body encephalitis, and subacute sclerosing panencephalitis.
  • Synthesis of information on clinical presentation, diagnostic approaches, and therapeutic strategies.

Main Results:

  • Measles can lead to four distinct types of encephalitis.
  • Non-specific early symptoms may mimic systemic infections, complicating diagnosis.
  • Specific clinical signs are crucial for timely identification of measles-induced encephalitis.

Conclusions:

  • Prompt recognition of measles-induced encephalitis is critical for effective management.
  • Understanding the diverse presentations of measles encephalitis aids in early diagnosis.
  • Healthcare workers should be vigilant for specific symptoms indicative of measles-induced encephalitis.