Organisms

Parasites

Invertebrate organisms that live on or in another organism (the host), and benefit at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Invertebrate organisms that live on or in another organism (the host), and benefit at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.

MeSH Record

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See Also

MeSH Record

Synonyms

1 entry terms
  • Parasite

MeSH Record

Aspects Covered

19 allowable subheadings

Indexed with the subheadings anatomy & histology, chemistry, classification, cytology, drug effects, embryology, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, microbiology, parasitology, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

general or unspecified only: prefer specifics; in lower animals: Manual 22.20; relation to parasitic diseases: Manual 22.12-.20; parasites in food or parasitic contamination of food is indexed under FOOD PARASITOLOGY (IM) + specific parasite (IM) + specific food item /parasitol (IM) or (NIM)

MeSH Record

History Note

PARASITICIDES was heading 1963-66

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AMA Style

References

  1. National Library of Medicine. Parasites. Medical Subject Headings (MeSH). 2026. Unique ID D010271. http://id.nlm.nih.gov/mesh/2026/D010271
  2. Parasites. In: Wikipedia. https://en.wikipedia.org/wiki/Parasite
  3. Parasites. In: Wikidata. https://www.wikidata.org/wiki/Q10253316