viral hemorrhagic fever
Let an agent explain viral haemorrhagic fevers and their causes in general terms from WHO and CDC sources, describe transmission, prevention and outbreak response, and route suspected cases to health authorities.
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 viral haemorrhagic fevers and their causes in general terms from WHO and CDC sources, describe transmission, prevention and outbreak response, and route suspected cases to health authorities.
A group of severe illnesses caused by viruses from several families, including filoviruses such as Ebola and Marburg, arenaviruses such as Lassa and Whitewater Arroyo, bunyaviruses such as Crimean-Congo haemorrhagic fever and hantaviruses, and flaviviruses such as yellow fever, dengue and Kyasanur Forest disease, characterised by fever, damage to blood vessels and in severe cases bleeding and organ failure; many are zoonotic, some spread between people, and several are epidemic-prone diseases under international health rules.
What it is for: Not applicable; a group of diseases.
It can be explain the group and causes; relay transmission and prevention; relay outbreak response; route suspected cases to authorities.
Distinguishing features
Multiple virus families
Zoonotic origins
High fatality in some
International health regulation
What it looks like
Not a visible object; a severe febrile illness.
Physical character
Ebola case fatality: about 25-90 percent - by outbreak
Lassa fever cases: about 100000-300000 per year - West Africa estimates
How it is recognised
Severe viral illnesses with vascular damage
Ebola, Marburg, Lassa, CCHF, hantavirus, Kyasanur Forest disease and others
Bacterial sepsis and malaria can look similar; not all cases bleed
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is caused by - of several families
is governed by - for outbreak reporting
In practice
Families and kinds
filovirus diseases: Ebola and Marburg
arenavirus haemorrhagic fevers: Lassa, Junin, Machupo, Whitewater Arroyo
bunyavirus diseases: Crimean-Congo haemorrhagic fever, Rift Valley fever, hantavirus haemorrhagic fever with renal syndrome
flavivirus diseases: yellow fever, severe dengue, Kyasanur Forest disease, Omsk haemorrhagic fever
Identifiers
ICD-11 1D60-1D6Z viral haemorrhagic fevers
MeSH D006482
Standards and regulation
WHO outbreak response guidance
International Health Regulations
Biosafety level 4 rules for some pathogens
Vaccination programmes for yellow fever and Ebola
Failure modes and hazards
Outbreaks with high mortality
Healthcare-associated transmission
Agents giving personal medical advice or laboratory detail
Stigma and misinformation
Also called
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.
Help Suspected cases first.
Safety.
Suspected
Suspected cases.
Suspected
Suspected.
- What should be done if a haemorrhagic fever is suspected, per WHO guidance? action
- Is the user describing a possible case, which needs immediate contact with health authorities? boundary
Travel
Travel and exposure.
Travel
Travel.
- What travel and exposure advice do health authorities give for affected regions? provenance
- Which references are standard? provenance
Understand The diseases.
Clinical.
Causes
Viruses and diseases.
Causes
Causes.
- What viruses cause haemorrhagic fevers, and how do the diseases differ? definition
- Is the question about a haemorrhagic fever or another febrile illness? boundary
Transmission
Transmission.
Transmission
Transmission.
- How are these diseases transmitted from animals and between people, in general terms? definition
- Which entry fits the specific disease? action
Respond Prevention and response.
Public health.
Prevention
Prevention.
Prevention
Prevention.
- What vaccines, vector control and infection control measures exist? provenance
- Which sources are cited? provenance
Outbreaks
Outbreak response.
Outbreaks
Outbreaks.
- How are outbreaks detected and managed, and what lessons come from past outbreaks? provenance
- Which entry fits the specific outbreak? action
Context Research and history.
Context.
Research
Research.
Research
Research.
- What research exists on treatments and vaccines, with findings attributed? provenance
- Is the presentation free of laboratory or operational detail? boundary
History
History.
History
History.
- How were these diseases discovered, from yellow fever to Ebola? provenance
- Which entry fits the history of virology? action
What the second pass must settle
- Should each disease be a separate primary entry?
- How should outbreak sources be linked?
- The registry entry has merged aliases naming distinct diseases; should they be split off?