Mycobacterium ulcerans
E928043
Mycobacterium ulcerans is a slow-growing environmental mycobacterium that causes Buruli ulcer, a chronic necrotizing skin and soft tissue infection in humans.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mycobacterium ulcerans canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11466497 — 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: Mycobacterium ulcerans Context triple: [Mycobacterium, includesSpecies, Mycobacterium ulcerans]
-
A.
Mycobacterium bovis
Mycobacterium bovis is a slow-growing, pathogenic bacterium that primarily causes tuberculosis in cattle and can infect humans, and it serves as the basis for the widely used BCG vaccine.
-
B.
Mycobacterium
Mycobacterium is a genus of rod-shaped, often slow-growing bacteria that includes important human pathogens such as the causative agents of tuberculosis and leprosy.
-
C.
Mycobacterium tuberculosis
Mycobacterium tuberculosis is the pathogenic bacterial species that causes most cases of human tuberculosis, primarily affecting the lungs and spreading through airborne transmission.
-
D.
Yersinia
Yersinia is a genus of Gram-negative bacteria that includes several pathogenic species, most notably Yersinia pestis, the causative agent of plague.
-
E.
Leptospira interrogans
Leptospira interrogans is a pathogenic spirochete bacterium that causes leptospirosis, a zoonotic disease transmitted to humans and animals through the urine of infected hosts such as rats.
- 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: Mycobacterium ulcerans Target entity description: Mycobacterium ulcerans is a slow-growing environmental mycobacterium that causes Buruli ulcer, a chronic necrotizing skin and soft tissue infection in humans.
-
A.
Mycobacterium bovis
Mycobacterium bovis is a slow-growing, pathogenic bacterium that primarily causes tuberculosis in cattle and can infect humans, and it serves as the basis for the widely used BCG vaccine.
-
B.
Mycobacterium
Mycobacterium is a genus of rod-shaped, often slow-growing bacteria that includes important human pathogens such as the causative agents of tuberculosis and leprosy.
-
C.
Mycobacterium tuberculosis
Mycobacterium tuberculosis is the pathogenic bacterial species that causes most cases of human tuberculosis, primarily affecting the lungs and spreading through airborne transmission.
-
D.
Yersinia
Yersinia is a genus of Gram-negative bacteria that includes several pathogenic species, most notably Yersinia pestis, the causative agent of plague.
-
E.
Leptospira interrogans
Leptospira interrogans is a pathogenic spirochete bacterium that causes leptospirosis, a zoonotic disease transmitted to humans and animals through the urine of infected hosts such as rats.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bacterial species
ⓘ
pathogenic bacterium ⓘ |
| causes | Buruli ulcer ⓘ |
| cellWallType | mycolic-acid-rich ⓘ |
| cultureMedium | Lowenstein–Jensen medium ⓘ |
| discoveryPeriod | mid-20th century ⓘ |
| diseaseType | neglected tropical disease agent ⓘ |
| domain | Bacteria ⓘ |
| family | Mycobacteriaceae ⓘ |
| genomeType | circular double-stranded DNA ⓘ |
| genus | Mycobacterium ⓘ |
| geographicDistribution |
subtropical regions
ⓘ
tropical regions ⓘ |
| gramStain | acid-fast ⓘ |
| growthCharacteristic | very long incubation time in culture ⓘ |
| growthRate | slow-growing ⓘ |
| highEndemicityRegion |
Australia
ⓘ
Central Africa ⓘ West Africa ⓘ |
| host | humans ⓘ |
| motility | non-motile ⓘ |
| mycolactoneFunction |
cytotoxic
ⓘ
immunosuppressive ⓘ |
| naturalHabitat |
aquatic environments
ⓘ
slow-flowing water bodies ⓘ wetlands ⓘ |
| optimalGrowthTemperature | 30–33 °C ⓘ |
| order | Corynebacteriales ⓘ |
| oxygenRequirement | aerobic ⓘ |
| pathogenicEffect |
chronic necrotizing skin infection
ⓘ
soft tissue destruction ⓘ |
| phylum | Actinobacteria ⓘ |
| plasmid | pMUM large plasmid ⓘ |
| pMUMFunction | encodes mycolactone synthesis genes ⓘ |
| primaryDisease | Buruli ulcer ⓘ |
| relatedPathogen |
Mycobacterium leprae
ⓘ
Mycobacterium marinum ⓘ |
| shape | rod-shaped ⓘ |
| sporeForming | non-spore-forming ⓘ |
| stainMethod | Ziehl–Neelsen positive ⓘ |
| taxonRank | species ⓘ |
| tissueTropism |
skin
ⓘ
subcutaneous tissue ⓘ |
| toxinProduced | mycolactone ⓘ |
| transmissionRoute | environmental exposure ⓘ |
| virulenceFactor | mycolactone ⓘ |
| WHOClassification | cause of neglected tropical disease Buruli ulcer ⓘ |
| zoonoticPotential | possible ⓘ |
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: Mycobacterium ulcerans Description of subject: Mycobacterium ulcerans is a slow-growing environmental mycobacterium that causes Buruli ulcer, a chronic necrotizing skin and soft tissue infection in humans.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.