2009 H1N1 influenza pandemic
E14008
The 2009 H1N1 influenza pandemic was a global outbreak of a novel swine-origin influenza A virus that spread rapidly worldwide, prompting extensive public health responses and international coordination.
All labels observed (7)
| Label | Occurrences |
|---|---|
| 2009 H1N1 influenza pandemic canonical | 4 |
| influenza A virus subtype H1N1 | 2 |
| 2009 swine flu pandemic | 1 |
| H1N1 | 1 |
| H1N1 influenza | 1 |
| H1N1 influenza A virus | 1 |
| H1N1pdm09 pandemic | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T127113 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: 2009 H1N1 influenza pandemic Context triple: [International Health Regulations (2005), usedDuring, 2009 H1N1 influenza pandemic]
-
A.
Public Health Emergency of International Concern
A Public Health Emergency of International Concern is a formal WHO designation for an extraordinary health event that poses a public health risk to multiple countries and may require a coordinated international response.
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B.
Roll Back Malaria
Roll Back Malaria is a global partnership initiative aimed at coordinating international efforts to control and eventually eliminate malaria, particularly in the most affected regions.
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C.
Center for Communicable Disease Dynamics
The Center for Communicable Disease Dynamics is a research center focused on understanding, modeling, and controlling infectious disease transmission and outbreaks.
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D.
Hundred Days
The Hundred Days was the brief 1815 period between Napoleon Bonaparte’s return from exile and his final defeat at Waterloo, marking the last phase of the Napoleonic Wars.
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E.
Hundred Days
The Hundred Days refers to the intense early period of Franklin D. Roosevelt’s presidency in 1933 when a flurry of New Deal legislation was rapidly enacted to combat the Great Depression.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: 2009 H1N1 influenza pandemic Target entity description: The 2009 H1N1 influenza pandemic was a global outbreak of a novel swine-origin influenza A virus that spread rapidly worldwide, prompting extensive public health responses and international coordination.
-
A.
Public Health Emergency of International Concern
A Public Health Emergency of International Concern is a formal WHO designation for an extraordinary health event that poses a public health risk to multiple countries and may require a coordinated international response.
-
B.
Roll Back Malaria
Roll Back Malaria is a global partnership initiative aimed at coordinating international efforts to control and eventually eliminate malaria, particularly in the most affected regions.
-
C.
Center for Communicable Disease Dynamics
The Center for Communicable Disease Dynamics is a research center focused on understanding, modeling, and controlling infectious disease transmission and outbreaks.
-
D.
Hundred Days
The Hundred Days was the brief 1815 period between Napoleon Bonaparte’s return from exile and his final defeat at Waterloo, marking the last phase of the Napoleonic Wars.
-
E.
Hundred Days
The Hundred Days refers to the intense early period of Franklin D. Roosevelt’s presidency in 1933 when a flurry of New Deal legislation was rapidly enacted to combat the Great Depression.
- F. None of above. chosen
Statements (66)
| Predicate | Object |
|---|---|
| instanceOf |
influenza pandemic
ⓘ
pandemic ⓘ public health emergency ⓘ |
| agePattern | higher mortality in younger adults compared to seasonal flu ⓘ |
| alsoKnownAs |
2009 H1N1 influenza pandemic
ⓘ
surface form:
2009 swine flu pandemic
2009 H1N1 influenza pandemic ⓘ
surface form:
H1N1pdm09 pandemic
|
| antiviralTreatment |
oseltamivir
ⓘ
zanamivir ⓘ |
| causativeAgent |
2009 H1N1 influenza pandemic
self-linksurface differs
ⓘ
surface form:
influenza A virus subtype H1N1
novel swine-origin influenza A H1N1 virus ⓘ |
| comparedTo | 1918 influenza pandemic ⓘ |
| complication |
acute respiratory distress syndrome
ⓘ
secondary bacterial pneumonia ⓘ viral pneumonia ⓘ |
| coordinatedBy |
World Health Organization
ⓘ
national public health agencies ⓘ |
| declaredBy | World Health Organization ⓘ |
| declaredPandemicOn | 2009-06-11 ⓘ |
| declaredPostPandemicPhaseBy | World Health Organization ⓘ |
| declaredPostPandemicPhaseOn | 2010-08-10 ⓘ |
| endTime |
2010
ⓘ
2010-08-10 ⓘ |
| epicenterRegion | North America ⓘ |
| excessMortalityEstimate | hundreds of thousands of deaths worldwide ⓘ |
| firstDetectedIn |
Mexico
ⓘ
United States of America ⓘ
surface form:
United States
|
| geneticReassortmentOf |
avian influenza viruses
ⓘ
human influenza viruses ⓘ swine influenza viruses ⓘ |
| globalCasesEstimate | hundreds of thousands of laboratory-confirmed cases ⓘ |
| globalDeathsEstimate | tens of thousands of laboratory-confirmed deaths ⓘ |
| host | humans ⓘ |
| longTermOutcome | H1N1pdm09 virus became a seasonal influenza strain ⓘ |
| originSpecies | pigs ⓘ |
| policyImpact |
revisions of national pandemic preparedness plans
ⓘ
strengthening of global influenza surveillance networks ⓘ |
| publicHealthResponse |
antiviral distribution
ⓘ
enhanced surveillance ⓘ mass vaccination campaigns ⓘ school closures ⓘ travel advisories ⓘ |
| riskGroup |
healthcare workers
ⓘ
people with chronic illnesses ⓘ pregnant women ⓘ young children ⓘ |
| severityComparedToSeasonalFlu | generally similar or slightly higher in many populations ⓘ |
| spreadTo |
Africa
ⓘ
Asia ⓘ Europe ⓘ North America ⓘ Oceania ⓘ South America ⓘ |
| startTime |
2009
ⓘ
2009-03 ⓘ |
| symptom |
cough
ⓘ
fatigue ⓘ fever ⓘ myalgia ⓘ sore throat ⓘ |
| transmissionRoute |
aerosol transmission
ⓘ
fomite transmission ⓘ respiratory droplets ⓘ |
| vaccineDeveloped | monovalent H1N1 influenza vaccine ⓘ |
| vaccineIntroducedIn | 2009 ⓘ |
| virusSubtype |
2009 H1N1 influenza pandemic
self-linksurface differs
ⓘ
surface form:
H1N1
|
| virusType | influenza A virus ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Subject: 2009 H1N1 influenza pandemic Description of subject: The 2009 H1N1 influenza pandemic was a global outbreak of a novel swine-origin influenza A virus that spread rapidly worldwide, prompting extensive public health responses and international coordination.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.