Evidence map›Paper›PMID 31358042›Full record

ReviewParasites & vectors2019

A summary of Blastocystis subtypes in North and South America.

Paula Andrea Jiménez, Jesús Eduardo Jaimes, Juan David Ramírez

Abstract readReview
In one paragraph

Review in Parasites & vectors, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing 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

83 citing papers in PubMed.

  1. Article
  2. Blastocystis, an Enigmatic Parasite.Acta parasitologica · 2026
    Review
  3. Occurrence and subtyping of the intestinal protozoanFood and waterborne parasitology · 2026
    Article
  4. Review
  5. Article
  6. MultipleFood and waterborne parasitology · 2025
    Article
  7. Article
  8. Article
  9. Review
  10. Assessing Zoonotic Risks ofPathogens (Basel, Switzerland) · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Genetic diversity of single-celled microorganismCurrent research in microbial sciences · 2025
    Article
  18. Article
  19. Microbial and metabolic signatures amongCurrent research in parasitology & vector-borne diseases · 2025
    Article
  20. Article

23 more citing papers are in PubMed but not listed here.

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

3 authors.

Paula Andrea JiménezGrupo de Investigaciones Microbiológicas-UR (GIMUR), Departamento de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia.
Jesús Eduardo JaimesGrupo de Investigaciones Microbiológicas-UR (GIMUR), Departamento de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia.
Juan David RamírezGrupo de Investigaciones Microbiológicas-UR (GIMUR), Departamento de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia. juand.ramirez@urosario.edu.co.ORCID http://orcid.org/0000-0002-1344-9312

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBlastocystis is a stramenopile of worldwide significance due to its capacity to colonize several hosts. Based on its high level of genetic diversity, Blastocystis is classified into global ribosomal subtypes (STs). The aim of this study was to conduct a summary of Blastocystis STs and depict their distribution throughout North and South America; we did this by assembling maps and identifying its most common 18S alleles based on diverse studies that had been reported all over the continent and whose Blastocystis-positive samples were obtained from numerous hosts.

resultsThirty-nine articles relating to nine countries from the American continent were considered, revealing that ST1 (33.3%), ST2 (21.9%), ST3 (37.9%), ST4 (1.7%), ST5 (0.4%), ST6 (1.2%), ST7 (1%), ST8 (0.7%), ST9 (0.4%), ST12 (0.3%), Novel ST (1.1%) and Mixed STs (0.2%) occurred in humans. The STs in other animal hosts were ST1 (6.5%), ST2 (6.5%), ST3 (4.7%), ST4 (7.2%), ST5 (15.9%), ST6 (17.3%), ST7 (3.6%), ST8 (20.6%), ST10 (9%), ST14 (3.6%), ST17 (1.1%) and Novel ST (4%). The countries that presented the most abundant variety of studies reporting STs were the USA with 14 STs, Brazil with 9 STs and Colombia with 8 STs. Additionally, new variants had been described in the last few years, which have increased the prevalence of these subtypes in the countries studied, such as Novel ST (1.1%) and Mixed STs (0.2%) in humans and Novel ST (4%) in animals.

conclusionsThis summary updates the epidemiological situation on the distribution of Blastocystis STs in North and South America and will augment current knowledge on the prevalence and genetic diversity of this protozoan.

Indexed as

AllelesAnimalsBlastocystisBlastocystis InfectionsDNA, ProtozoanDNA, RibosomalFecesGenetic VariationGenotypeHumansNorth AmericaPhylogenyPrevalenceRNA, Ribosomal, 18SSouth AmericaDNA, ProtozoanDNA, RibosomalRNA, Ribosomal, 18SBlastocystisDistributionDiversityGeographicNorth and South AmericaSubtypes

Identifiers

PMID31358042
PMCPMC6664531

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.