hepatitis B
Let an agent explain hepatitis B and its course in neutral clinical terms, relay transmission, prevention, testing and treatment from public health and hepatology sources, describe hepatitis D co-infection, and route people at risk or with symptoms to testing and clinicians.
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 hepatitis B and its course in neutral clinical terms, relay transmission, prevention, testing and treatment from public health and hepatology sources, describe hepatitis D co-infection, and route people at risk or with symptoms to testing and clinicians.
A viral infection of the liver caused by the hepatitis B virus, transmitted through blood, sexual contact and from mother to child at birth, which may be acute and self-limiting or become chronic, especially when acquired in infancy, leading over decades to cirrhosis and liver cancer, and which can be complicated by co-infection with the hepatitis D virus, a defective virus that requires hepatitis B to replicate and causes severe forms such as the Labrea fever of the Amazon; hepatitis B is preventable by vaccination and treatable with antiviral drugs.
What it is for: Not applicable; a disease.
It can be explain the disease and course; relay prevention and treatment; describe hepatitis D; route to testing and care.
Distinguishing features
Blood-borne and perinatal
Chronic carriage
Vaccine-preventable
Hepatitis D dependence
What it looks like
Not a visible object; jaundice in some acute cases, often silent.
Physical character
people with chronic infection: about 250 million - WHO estimates
annual deaths: about 1 million - mostly cirrhosis and cancer
vaccine introduced: 1982 year
hepatitis D discovered: 1977 year
How it is recognised
Liver infection by hepatitis B virus
Acute and chronic hepatitis B, hepatitis D co-infection and superinfection, Labrea fever
Hepatitis A and E spread by food and water; hepatitis C is a different blood-borne virus
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is caused by - of the Hepadnaviridae
is prevented by - in infancy and at-risk groups
In practice
Families and kinds
acute hepatitis B
chronic hepatitis B
hepatitis D co-infection and superinfection including chronic hepatitis D
severe regional forms such as Labrea fever
occult and resolved infection
hepatitis B genotypes
Identifiers
ICD-11 1E51.0 chronic hepatitis B
MeSH D006509 hepatitis B
Standards and regulation
WHO guidelines on hepatitis B prevention, testing and treatment
Universal infant vaccination programmes
Blood donation screening rules
Notifiable disease reporting
Failure modes and hazards
Agents giving personal medical advice
Stigma toward people living with hepatitis B
Missed diagnosis of silent chronic infection
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 Testing and care first.
Safety.
Testing
Who should test.
Testing
Testing.
- Why do people with risk exposures, or from high-prevalence regions, or with symptoms such as jaundice, need testing and clinical care? action
- Is the user asking about their own exposure or result, which needs a clinician? boundary
Living
Living with hepatitis B.
Living
Living.
- What support and monitoring do people with chronic hepatitis B receive, and how is stigma addressed? provenance
- Is the presentation free of stigma? boundary
Understand The disease.
Clinical.
Course
Course.
Course
Course.
- How does hepatitis B progress from acute infection to chronic disease, cirrhosis and cancer? definition
- Is the question about hepatitis B, hepatitis D or another hepatitis? boundary
Transmission
Transmission.
Transmission
Transmission.
- How is hepatitis B transmitted, and how does hepatitis D depend on it? definition
- Which entry fits hepatitis D? action
Prevent Prevention and treatment.
Public health.
Vaccine
Vaccination.
Vaccine
Vaccine.
- How do vaccination, birth-dose programmes and screening prevent hepatitis B, according to WHO? provenance
- Which references are standard? provenance
Treatment
Treatment.
Treatment
Treatment.
- How are chronic hepatitis B and hepatitis D treated with antivirals and newer drugs, in general terms? provenance
- Which sources are cited? provenance
Context Epidemiology and research.
Context.
Epidemiology
Epidemiology.
Epidemiology
Epidemiology.
- Where is hepatitis B most common, and what are elimination targets, with data attributed? provenance
- Which entry fits viral hepatitis elimination? action
Research
Research.
Research
Research.
- What research pursues a cure for hepatitis B and treatments for hepatitis D? provenance
- Which entry fits hepatitis B virus? action
What the second pass must settle
- Should hepatitis D be a separate primary entry?
- How should public health guidelines be linked?
- The registry entry has merged hepatitis D aliases; should they be split off?