Delta variant
E335749
The Delta variant is a highly transmissible strain of the SARS-CoV-2 virus that caused significant global surges in COVID-19 cases before the emergence of later variants.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Delta variant canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3205370 — 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.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Delta variant Context triple: [COVID-19 pandemic, notableVariant, Delta variant]
-
A.
Omicron
Omicron is a vowel letter of the Greek alphabet, historically representing a short "o" sound and used today in various scientific and mathematical contexts.
-
B.
Fluzão
Fluzão is a popular nickname for Fluminense Football Club, one of Brazil’s traditional Rio de Janeiro–based football teams.
-
C.
Leqembi
Leqembi is an Alzheimer’s disease drug (lecanemab) that targets amyloid-beta plaques to slow cognitive decline in early-stage patients.
-
D.
Delta
Delta is a small city in central Utah known historically for agriculture, nearby fossil sites, and its proximity to the former Topaz War Relocation Center.
-
E.
Delta
Delta is a suburban coastal municipality in British Columbia, Canada, known for its agricultural lands, wetlands, and role as part of the Greater Vancouver area.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Delta variant Target entity description: The Delta variant is a highly transmissible strain of the SARS-CoV-2 virus that caused significant global surges in COVID-19 cases before the emergence of later variants.
-
A.
Omicron
Omicron is a vowel letter of the Greek alphabet, historically representing a short "o" sound and used today in various scientific and mathematical contexts.
-
B.
Fluzão
Fluzão is a popular nickname for Fluminense Football Club, one of Brazil’s traditional Rio de Janeiro–based football teams.
-
C.
Leqembi
Leqembi is an Alzheimer’s disease drug (lecanemab) that targets amyloid-beta plaques to slow cognitive decline in early-stage patients.
-
D.
Delta
Delta is a small city in central Utah known historically for agriculture, nearby fossil sites, and its proximity to the former Topaz War Relocation Center.
-
E.
Delta
Delta is a suburban coastal municipality in British Columbia, Canada, known for its agricultural lands, wetlands, and role as part of the Greater Vancouver area.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
SARS-CoV-2 variant
ⓘ
Variant of concern ⓘ Viral strain ⓘ |
| affectsProtein | Spike protein ⓘ |
| alsoKnownAs |
B.1.617.2
ⓘ
Delta ⓘ |
| associatedWith |
Breakthrough infections in vaccinated individuals
ⓘ
Higher secondary attack rate ⓘ Increased basic reproduction number (R0) compared to original strain ⓘ Increased risk of hospitalization compared to earlier variants ⓘ Increased viral load in infected individuals ⓘ |
| belongsToSpecies |
SARS-CoV-2
ⓘ
surface form:
Severe acute respiratory syndrome coronavirus 2
|
| causes |
SARS-CoV-2
ⓘ
surface form:
COVID-19
|
| designatedVariantOfConcernBy | World Health Organization ⓘ |
| firstDetectedDate | October 2020 ⓘ |
| firstDetectedIn | India ⓘ |
| genomeType | Single-stranded RNA ⓘ |
| hasProteinMutation |
L452R
ⓘ
P681R ⓘ T478K ⓘ |
| impactOn |
Global COVID-19 case surges in 2021
ⓘ
Health care system strain in many countries ⓘ Public health policy responses ⓘ |
| notableCharacteristic |
High transmissibility
ⓘ
Multiple spike protein mutations ⓘ Rapid global spread ⓘ |
| notableSublineage |
AY.1
ⓘ
AY.2 ⓘ AY.4 ⓘ AY.4.2 ⓘ |
| partOf | SARS-CoV-2 lineage B.1.617 ⓘ |
| peakGlobalPrevalencePeriod | Mid 2021 to late 2021 ⓘ |
| publicHealthClassification |
Variant of concern (CDC, United States)
ⓘ
Variant of concern (ECDC) ⓘ Variant of concern (WHO) ⓘ |
| relativeVaccineEffectiveness |
Maintained strong protection against severe disease for most vaccines
ⓘ
Reduced infection protection compared to earlier variants ⓘ |
| replacedBy | Omicron variant ⓘ |
| spreadTo | Global ⓘ |
| transmissibilityComparedTo |
Higher than Alpha variant
ⓘ
Higher than original Wuhan strain ⓘ |
| transmissionRoute |
Aerosols
ⓘ
Respiratory droplets ⓘ |
| transmissionSetting |
Households
ⓘ
Indoor crowded spaces ⓘ |
| virusType | SARS-CoV-2 ⓘ |
| whoDesignationDate | May 2021 ⓘ |
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.
Instruction
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.
Input
Subject: Delta variant Description of subject: The Delta variant is a highly transmissible strain of the SARS-CoV-2 virus that caused significant global surges in COVID-19 cases before the emergence of later variants.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.