1918 influenza pandemic
E86055
The 1918 influenza pandemic was a catastrophic global outbreak of H1N1 influenza that infected a third of the world’s population and caused tens of millions of deaths, making it one of the deadliest pandemics in history.
All labels observed (8)
| Label | Occurrences |
|---|---|
| 1918 influenza pandemic canonical | 3 |
| Spanish flu | 3 |
| Spanish flu pandemic | 3 |
| 1918 flu pandemic | 1 |
| Great Influenza pandemic | 1 |
| Spanish flu pandemic (1918 influenza pandemic) | 1 |
| Spanish influenza epidemic in Chicago | 1 |
| Spanish influenza pandemic | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T701572 — 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: 1918 influenza pandemic Context triple: [2009 H1N1 influenza pandemic, comparedTo, 1918 influenza pandemic]
-
A.
2009 H1N1 influenza pandemic
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.
-
B.
Black Death
The Black Death was a devastating 14th-century pandemic of bubonic plague that killed tens of millions of people in Europe, Asia, and North Africa and profoundly reshaped medieval society.
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C.
Third Plague Pandemic
The Third Plague Pandemic was a global outbreak of bubonic plague that began in China in the mid-19th century, spread worldwide via trade routes, and led to the modern scientific understanding of plague and its transmission.
-
D.
Justinianic Plague
The Justinianic Plague was a devastating 6th-century pandemic of bubonic plague that ravaged the Byzantine Empire and Mediterranean world, often considered a precursor to the later Black Death.
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E.
Great Plague of London
The Great Plague of London was a devastating outbreak of bubonic plague in 1665–1666 that killed a large portion of the city’s population and marked the last major epidemic of its kind in England.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: 1918 influenza pandemic Target entity description: The 1918 influenza pandemic was a catastrophic global outbreak of H1N1 influenza that infected a third of the world’s population and caused tens of millions of deaths, making it one of the deadliest pandemics in history.
-
A.
2009 H1N1 influenza pandemic
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.
-
B.
Black Death
The Black Death was a devastating 14th-century pandemic of bubonic plague that killed tens of millions of people in Europe, Asia, and North Africa and profoundly reshaped medieval society.
-
C.
Third Plague Pandemic
The Third Plague Pandemic was a global outbreak of bubonic plague that began in China in the mid-19th century, spread worldwide via trade routes, and led to the modern scientific understanding of plague and its transmission.
-
D.
Justinianic Plague
The Justinianic Plague was a devastating 6th-century pandemic of bubonic plague that ravaged the Byzantine Empire and Mediterranean world, often considered a precursor to the later Black Death.
-
E.
Great Plague of London
The Great Plague of London was a devastating outbreak of bubonic plague in 1665–1666 that killed a large portion of the city’s population and marked the last major epidemic of its kind in England.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
global health disaster
ⓘ
influenza pandemic ⓘ pandemic ⓘ |
| affectedArea |
Africa
ⓘ
Asia ⓘ Europe ⓘ North America ⓘ Oceania ⓘ South America ⓘ |
| alsoKnownAs |
1918 influenza pandemic
ⓘ
surface form:
1918 flu pandemic
1918 influenza pandemic ⓘ
surface form:
Great Influenza pandemic
1918 influenza pandemic ⓘ
surface form:
Spanish flu
|
| concurrentWith | World War I ⓘ |
| disproportionatelyAffected |
military personnel
ⓘ
pregnant women ⓘ young adults aged 20 to 40 ⓘ |
| endTime | 1920 ⓘ |
| estimatedDeaths |
at least 20 million
ⓘ
possibly as high as 100 million ⓘ up to 50 million ⓘ |
| hasCause |
2009 H1N1 influenza pandemic
ⓘ
surface form:
H1N1 influenza A virus
|
| hasCharacteristic |
high case fatality rate
ⓘ
multiple waves of infection ⓘ rapid global spread ⓘ unusually high mortality in young adults ⓘ |
| hasLegacy |
benchmark for pandemic severity
ⓘ
reference point for later influenza pandemics such as 1957, 1968, and 2009 ⓘ |
| hasPathogen |
2009 H1N1 influenza pandemic
ⓘ
surface form:
influenza A virus subtype H1N1
|
| hasWave |
first wave in early 1918
ⓘ
second wave in late 1918 ⓘ third wave in 1919 ⓘ |
| impact |
large-scale social disruption
ⓘ
severe strain on health care systems ⓘ significant economic losses ⓘ |
| influenced |
development of modern epidemiology
ⓘ
preparedness planning for future pandemics ⓘ public health policy on influenza ⓘ |
| isOneOf | deadliest pandemics in history ⓘ |
| location | worldwide ⓘ |
| majorOutbreakIn |
Brazil
ⓘ
China ⓘ India ⓘ Japan ⓘ South Africa ⓘ Spain ⓘ United Kingdom ⓘ United States of America ⓘ
surface form:
United States
|
| numberOfInfectedPeople | about one third of the world population ⓘ |
| peakPeriod | late 1918 ⓘ |
| startTime | 1918 ⓘ |
| transmissionMethod |
aerosols
ⓘ
close contact between people ⓘ respiratory droplets ⓘ |
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: 1918 influenza pandemic Description of subject: The 1918 influenza pandemic was a catastrophic global outbreak of H1N1 influenza that infected a third of the world’s population and caused tens of millions of deaths, making it one of the deadliest pandemics in history.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.