ArticleParasites & vectors2015
The distribution of Blastocystis subtypes in isolates from Qatar.
Article in Parasites & vectors, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
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Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.
- Prevalence of Blastocystis sp. infection in several hosts in Brazil: a systematic review and meta-analysis.Parasites & vectors · 2020Pooled it
- Associations between Blastocystis spp., Campylobacter spp., Giardia duodenalis and Dientamoeba fragilis using Bayesian priors to account for diagnostic test accuracy.European journal of microbiology & immunology · 2025Article
- Crossing the species barrier: Bidirectional transmission ofOne health (Amsterdam, Netherlands) · 2025Review
- Molecular characterization and subtype analysis of Blastocystis sp. in captive wildlife in Henan, China.Parasite (Paris, France) · 2025Article
- Blastocystis colonization and associations with population parameters in Thai adults.PLoS neglected tropical diseases · 2024Article
- Molecular Prevalence and Subtypes Distribution ofTropical medicine and infectious disease · 2024Review
- Systematic Review and Meta-Analysis: Epidemiology of HumanTropical medicine and infectious disease · 2023Review
- Prevalence of Blastocystis sp. in Morocco: Comparative assessment of three diagnostic methods and characterization of parasite forms in Jones' culture medium.Parasite (Paris, France) · 2023Article
- Molecular characterization of Blastocystis subtypes in symptomatic patients from the southern region of Syria.PloS one · 2023Article
- Higher amoebic and metronidazole resistant forms of Blastocystis sp. seen in schizophrenic patients.Parasites & vectors · 2022Article
- Prevalence and Associated Factors ofTropical medicine and infectious disease · 2022Article
- The Coexistence ofBiology · 2021Review
- Article
- Prevalence and Subtype Analysis ofJournal of parasitology research · 2021Article
- Prevalence of Intestinal Parasites in a Low-Income Texas Community.The American journal of tropical medicine and hygiene · 2020Article
- Distribution and phylogenetic analysis of Blastocystis sp. subtypes isolated from IBD patients and healthy individuals in Iran.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2017Article
- Blastocystis in Côte d'Ivoire: molecular identification and epidemiological data.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2017Article
- Distribution of Blastocystis subtypes isolated from humans from an urban community in Rio de Janeiro, Brazil.Parasites & vectors · 2017Article
- Coproscopy and molecular screening for detection of intestinal protozoa.Parasites & vectors · 2017Article
- Molecular epidemiology of blastocystosis in Malaysia: does seasonal variation play an important role in determining the distribution and risk factors of Blastocystis subtype infections in the Aboriginal community?Parasites & vectors · 2017Article
Corrections and comments
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Authors and funding
5 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBlastocystis is a common single-celled intestinal parasite of humans and other animals comprising at least 17 genetically distinct small subunit ribosomal RNA lineages (subtypes (STs)), nine of which have been found in humans. The geographic distribution of Blastocystis subtypes is variable, but the subtypes present in Qatar are at present unknown.
methodsStool samples were collected from randomly selected, apparently healthy subjects arriving in Qatar for the first time. Blastocystis subtypes were determined by sequencing of the small subunit rRNA gene (SSU rDNA) PCR products. Phylogenetic analyses were done using Maximum Composite Likelihood method.
results71.1 % of samples were positive for Blastocystis infection based on PCR-detection methodology compared to only 6.9 % by microscopy. Prevalence of Blastocystis did not differ between the sexes nor between age classes. However, there was a regional difference in prevalence with subjects arriving from Africa showing the highest (87.6 %), those from Western Asia intermediate (68.6 %) and from Eastern Asia the lowest prevalence (67.6 %). Genetic analysis detected only three STs. ST3 was the most common (69.3 %) and ST2 was the rarest (3.5 %), while ST1 had a prevalence of 27.2 %. ST2 showed a regional variation, being absent from the 64 Western Asian Blastocystis-positive subjects. Both ST1 and ST3 showed significant differences in prevalence between the sexes.
conclusionsThis is the first report exploring the distribution of Blastocystis subtypes in our region. We recommend that stool screening via microscopy for the presence of Blastocystis should be abandoned since it is extremely insensitive. In future, the prevalence of Blastocystis infections should be based on PCR methodology and we predict that in the years ahead diagnostic PCR will become the tool of choice. More work is needed to identify the full range of Blastocystis subtypes that circulate in our region.
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