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Research draft

transmissible spongiform encephalopathy

vr.tr.transmissible-spongiform-encephalopathy · INF.KNW

Let an agent explain transmissible spongiform encephalopathies and prions in general terms from public health and veterinary sources, describe human and animal forms, relay surveillance and control measures, and route personal medical questions to clinicians.

Thing Registry Information and virtual systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent explain transmissible spongiform encephalopathies and prions in general terms from public health and veterinary sources, describe human and animal forms, relay surveillance and control measures, and route personal medical questions to clinicians.

A group of fatal neurodegenerative diseases of humans and animals caused by prions, misfolded proteins that induce further misfolding, producing sponge-like brain damage, including Creutzfeldt-Jakob disease in sporadic, inherited, iatrogenic and variant forms, kuru, fatal familial insomnia, scrapie in sheep including atypical scrapie, bovine spongiform encephalopathy, chronic wasting disease in deer, transmissible mink encephalopathy and spongiform encephalopathies of exotic ungulates and camels; there is no cure, and control relies on surveillance and feed and blood safety rules.

What it is for: Not applicable; a group of diseases.

It can be explain prions and disease forms; relay human and animal diseases; relay surveillance and control; route personal questions.

Distinguishing features

Prion cause

Long incubation

Invariably fatal

Resistant infectious agent

What it looks like

Not a visible object; spongiform brain changes seen at post-mortem.

Physical character

sporadic CJD incidence: about 1-2 per million per year

variant CJD cases worldwide: about 230 count - cumulative

How it is recognised

Prion diseases with spongiform brain damage

CJD, kuru, scrapie, BSE, CWD and related diseases

Other dementias are not transmissible; viral encephalitis has a different cause

Related models

is a kind of - in registry terms

neurodegenerative disease with dementia

is a kind of - in registry terms

encephalopathy

is caused by - the misfolded protein

prion

is controlled by - and surveillance in animals

feed ban

In practice

Families and kinds

human prion diseases: sporadic, inherited, iatrogenic and variant CJD, kuru, fatal familial insomnia, GSS

scrapie and atypical scrapie

bovine spongiform encephalopathy

chronic wasting disease

transmissible mink encephalopathy

exotic ungulate and camel spongiform encephalopathies

feline spongiform encephalopathy

Identifiers

ICD-11 8E00 prion diseases

WOAH listed diseases BSE and scrapie

Standards and regulation

WHO and national CJD surveillance

Animal feed bans and BSE testing rules

Blood and tissue donor deferral rules

Decontamination standards for surgical instruments

Failure modes and hazards

Iatrogenic transmission

Food chain contamination

Chronic wasting disease spread in wildlife

Agents giving personal medical advice

Also called

inherited prion diseaseatypical scrapievariant Creutzfeldt–Jakob diseaseTransmissible mink encephalopathyexotic ungulate encephalopathyCamel spongiform encephalopathyfeline spongiform encephalopathyvariably protease-sensitive prionopathyspongiform encephalopathy with neuropsychiatric features

Where this came from

wikidata · CC0 1.0

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Understand The diseases.

Science.

Prions

Prions and mechanism.

Prions

Prions.

  1. What are prions, and how do they cause spongiform encephalopathies? definition
  2. Is the question about a prion disease or another dementia or encephalitis? boundary

Forms

Human and animal forms.

Forms

Forms.

  1. What are the human and animal forms, and how do they differ? definition
  2. Which entry fits the specific disease? action
Clinical Diagnosis and care.

Clinical.

Diagnosis

Diagnosis.

Diagnosis

Diagnosis.

  1. How are prion diseases diagnosed, and what are the signs, in general terms? provenance
  2. Is the user asking about a personal or family case, which needs a neurologist? boundary

Care

Care and genetics.

Care

Care.

  1. What care and genetic counselling exist, given there is no cure? provenance
  2. Which references are standard? provenance
Control Public health and animal control.

Regulation.

Measures

Control measures.

Measures

Measures.

  1. What feed, food, blood and surgical measures control transmission? provenance
  2. Which entry fits BSE control? action

Surveillance

Surveillance.

Surveillance

Surveillance.

  1. How are human and animal prion diseases monitored, with sources? provenance
  2. Which sources are cited? provenance
Context History and research.

Context.

History

History.

History

History.

  1. How were kuru, scrapie and BSE understood, and how did Prusiner establish the prion concept? provenance
  2. Which entry fits the BSE crisis? action

Research

Research.

Research

Research.

  1. What research exists on treatments, diagnostics and prion-like mechanisms in other diseases, with findings attributed? provenance
  2. Which entry fits prion research? action

What the second pass must settle

  • Should CJD and BSE be separate primary entries?
  • How should surveillance sources be linked?
  • The registry entry has merged aliases naming distinct diseases; should they be split off?