Necator americanus
E101495
Necator americanus is a parasitic hookworm species that infects humans, primarily in tropical and subtropical regions, causing iron-deficiency anemia and other health problems.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Necator americanus canonical | 2 |
| NecatorAmericanus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T776148 — 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: Necator americanus Context triple: [Nematoda, includesTaxon, Necator americanus]
-
A.
Ancylostoma duodenale
Ancylostoma duodenale is a parasitic hookworm species that infects the human small intestine, causing iron-deficiency anemia and other gastrointestinal symptoms.
-
B.
Ascaris lumbricoides
Ascaris lumbricoides is a large parasitic roundworm that infects the human intestine and is a common cause of ascariasis worldwide.
-
C.
Brugia malayi
Brugia malayi is a parasitic roundworm that infects humans and causes lymphatic filariasis, a tropical disease characterized by swelling and damage to the lymphatic system.
-
D.
Trichinella spiralis
Trichinella spiralis is a parasitic roundworm that causes trichinosis in humans and other mammals, typically acquired by eating undercooked meat containing its larvae.
-
E.
Enterobius vermicularis
Enterobius vermicularis is a small parasitic pinworm that commonly infects the human intestine, especially in children, causing enterobiasis characterized by perianal itching.
- 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: Necator americanus Target entity description: Necator americanus is a parasitic hookworm species that infects humans, primarily in tropical and subtropical regions, causing iron-deficiency anemia and other health problems.
-
A.
Ancylostoma duodenale
Ancylostoma duodenale is a parasitic hookworm species that infects the human small intestine, causing iron-deficiency anemia and other gastrointestinal symptoms.
-
B.
Ascaris lumbricoides
Ascaris lumbricoides is a large parasitic roundworm that infects the human intestine and is a common cause of ascariasis worldwide.
-
C.
Brugia malayi
Brugia malayi is a parasitic roundworm that infects humans and causes lymphatic filariasis, a tropical disease characterized by swelling and damage to the lymphatic system.
-
D.
Trichinella spiralis
Trichinella spiralis is a parasitic roundworm that causes trichinosis in humans and other mammals, typically acquired by eating undercooked meat containing its larvae.
-
E.
Enterobius vermicularis
Enterobius vermicularis is a small parasitic pinworm that commonly infects the human intestine, especially in children, causing enterobiasis characterized by perianal itching.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
hookworm species
ⓘ
human parasite ⓘ parasitic nematode ⓘ |
| associatedWith |
malnutrition
ⓘ
poverty ⓘ |
| class | Secernentea ⓘ |
| commonName | New World hookworm ⓘ |
| controlMethod |
health education
ⓘ
improved sanitation ⓘ |
| diseaseCaused |
hookworm disease
ⓘ
iron-deficiency anemia ⓘ protein-energy malnutrition ⓘ |
| eggSheddingSite | human feces ⓘ |
| family | Ancylostomatidae ⓘ |
| feedingType | hematophagous ⓘ |
| genus | Necator ⓘ |
| geographicDistribution |
Latin America
ⓘ
Pacific islands ⓘ Southeast Asia ⓘ Sub-Saharan Africa ⓘ
surface form:
sub-Saharan Africa
subtropical regions ⓘ tropical regions ⓘ |
| habitat | small intestine of humans ⓘ |
| infectionSite |
lungs (during migration)
ⓘ
skin (entry site) ⓘ small intestine (final site) ⓘ |
| kingdom | Animalia ⓘ |
| lifeCycleStage |
adult worm
ⓘ
egg ⓘ filariform (infective) larva ⓘ rhabditiform larva ⓘ |
| morphology | benthic blood-feeding nematode ⓘ |
| order | Strongylida ⓘ |
| parasitizes | Homo sapiens ⓘ |
| phylum | Nematoda ⓘ |
| primaryHost | humans ⓘ |
| publicHealthSignificance | major cause of soil-transmitted helminth infections ⓘ |
| symptom |
abdominal pain
ⓘ
cognitive impairment in children ⓘ diarrhea ⓘ fatigue ⓘ growth retardation in children ⓘ weakness ⓘ |
| taxonRank | species ⓘ |
| transmissionCondition |
barefoot walking on contaminated soil
ⓘ
poor sanitation ⓘ |
| transmissionRoute |
contact with contaminated soil
ⓘ
skin penetration by infective larvae ⓘ |
| treatment |
albendazole
ⓘ
mebendazole ⓘ pyrantel pamoate ⓘ |
| zoonoticPotential | low compared to Ancylostoma species ⓘ |
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: Necator americanus Description of subject: Necator americanus is a parasitic hookworm species that infects humans, primarily in tropical and subtropical regions, causing iron-deficiency anemia and other health problems.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
NecatorAmericanus