plague
Let an agent explain plague and its forms in general terms from WHO and CDC sources, describe transmission, treatment and control, present historical pandemics with attribution, 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 plague and its forms in general terms from WHO and CDC sources, describe transmission, treatment and control, present historical pandemics with attribution, and route suspected cases to health authorities.
An infectious disease caused by the bacterium Yersinia pestis, transmitted by fleas from rodents and between people, in bubonic form with swollen lymph nodes, septicaemic form and pneumonic form spread by droplets, with rarer presentations such as plague meningitis and cutaneous plague and a mild form called pestis minor; plague caused the Justinian pandemic, the Black Death and the third pandemic, persists in sylvatic rodent reservoirs on several continents with occasional urban outbreaks, and is treatable with antibiotics.
What it is for: Not applicable; a disease.
It can be explain forms and transmission; relay treatment and control; present history with attribution; route suspected cases.
Distinguishing features
Flea-borne zoonosis
Three main forms
Pandemic history
Antibiotic treatable
What it looks like
Not a visible object; an acute febrile illness with buboes in the bubonic form.
Physical character
cases reported to WHO: about 200-700 per year - recent years
untreated bubonic fatality: about 30-60 percent
How it is recognised
Yersinia pestis infection
Bubonic, septicaemic, pneumonic and rarer forms; sylvatic and urban plague
The word plague is also used loosely for other epidemics; typhus and anthrax are different diseases
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is caused by - the bacterium
is transmitted by - from rodents
In practice
Families and kinds
bubonic plague
septicaemic plague
pneumonic plague
plague meningitis, cutaneous plague and pestis minor
sylvatic plague in wild rodents
urban plague outbreaks
historical pandemics: Justinian, Black Death, third pandemic
Identifiers
ICD-11 1B93 plague
MeSH D010930
Standards and regulation
WHO plague guidance and International Health Regulations
Notifiable disease rules
Biosafety rules for Yersinia pestis
Failure modes and hazards
Delayed treatment with high mortality
Pneumonic spread
Agents giving personal medical or laboratory detail
Confusing plague with other epidemics
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.plague-cognition
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 plague is suspected, per health authority guidance? action
- Is the user describing a possible case, which needs immediate contact with health services? boundary
Treatment
Treatment.
Treatment
Treatment.
- How is plague diagnosed and treated with antibiotics, in general terms? provenance
- Which references are standard? provenance
Understand The disease.
Clinical.
Forms
Forms and transmission.
Forms
Forms.
- What are the forms of plague, and how is each transmitted? definition
- Is the question about plague or another disease called plague loosely? boundary
Ecology
Reservoirs and ecology.
Ecology
Ecology.
- Where does plague persist in sylvatic reservoirs, and how do urban outbreaks arise? provenance
- Which entry fits the specific region? action
Control Prevention and control.
Public health.
Prevention
Prevention.
Prevention
Prevention.
- How are plague outbreaks prevented and controlled through rodent and flea control and surveillance? provenance
- Which sources are cited? provenance
Outbreaks
Recent outbreaks.
Outbreaks
Outbreaks.
- What recent outbreaks have occurred, such as in Madagascar, as reported? provenance
- Which entry fits the specific outbreak? action
History History.
Attribution.
Pandemics
Historical pandemics.
Pandemics
Pandemics.
- How do historians and geneticists describe the Justinian plague, the Black Death and the third pandemic? provenance
- Which entry fits the specific pandemic? action
Science
Scientific history.
Science
Science.
- How were the bacterium and flea transmission discovered by Yersin, Kitasato and Simond? provenance
- Which entry fits the history of microbiology? action
What the second pass must settle
- Should the Black Death and pneumonic plague be separate primary entries?
- How should WHO guidance be linked?
- The registry entry has merged aliases naming forms and ecological settings; should they be split off?