Evidence map›Paper›PMID 34819766›Full record

ArticleZooKeys2021

An annotated checklist of the eukaryotic parasites of humans, exclusive of fungi and algae.

Blaine A Mathison, Sarah G H Sapp

Abstract read
In one paragraph

Article in ZooKeys, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Review
  2. Butterflies in the stomach: a critical analysis on human scoleciasis.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2026
    Review
  3. A fourfold pathogen reference ontology suite.Journal of biomedical semantics · 2025
    Article
  4. Article
  5. Article
  6. The Microbe, the Infection Enigma, and the Host.Annual review of microbiology · 2024
    Review
  7. Article
  8. Mitochondrial CytochromeTropical medicine and infectious disease · 2024
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Blaine A MathisonInstitute for Clinical and Experimental Pathology, ARUP Laboratories, Salt Lake City, UT, USA Institute for Clinical and Experimental Pathology Salt Lake City United States of America.
Sarah G H SappParasitic Diseases Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, GA, USA Centers for Disease Control and Prevention Atlanta United States of America.ORCID https://orcid.org/0000-0002-5839-6066

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The classification of "parasites" in the medical field is a challenging notion, a group which historically has included all eukaryotes exclusive of fungi that invade and derive resources from the human host. Since antiquity, humans have been identifying and documenting parasitic infections, and this collective catalog of parasitic agents has expanded considerably with technology. As our understanding of species boundaries and the use of molecular tools has evolved, so has our concept of the taxonomy of human parasites. Consequently, new species have been recognized while others have been relegated to synonyms. On the other hand, the decline of expertise in classical parasitology and limited curricula have led to a loss of awareness of many rarely encountered species. Here, we provide a comprehensive checklist of all reported eukaryotic organisms (excluding fungi and allied taxa) parasitizing humans resulting in 274 genus-group taxa and 848 species-group taxa. For each species, or genus where indicated, a concise summary of geographic distribution, natural hosts, route of transmission and site within human host, and vectored pathogens are presented. Ubiquitous, human-adapted species as well as very rare, incidental zoonotic organisms are discussed in this annotated checklist. We also provide a list of 79 excluded genera and species that have been previously reported as human parasites but are not believed to be true human parasites or represent misidentifications or taxonomic changes.

Indexed as

Acanthocephalansarthropodscestodesleechesnematodesparasitologyprotozoatrematodes

Identifiers

PMID34819766
PMCPMC8595220

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.