Geographic distribution of human Blastocystis subtypes in South America
Blastocystis is a cosmopolitan enteric protist colonizing probably more than 1 billion people. This protozoan exhibits genetic diversity and is subdivided into subtypes (STs). The aim of this study was to determine the distribution of Blastocystis STs in symptomatic and asymptomatic human samples fr...
| Autores: | , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Colombia |
| Institución: | Universidad del Rosario |
| Repositorio: | Repositorio EdocUR - U. Rosario |
| Idioma: | inglés |
| OAI Identifier: | oai:repository.urosario.edu.co:10336/24299 |
| Acceso en línea: | https://doi.org/10.1016/j.meegid.2016.03.017 https://repository.urosario.edu.co/handle/10336/24299 |
| Access Level: | acceso abierto |
| Palabra clave: | Allele Article Blastocystis Feces analysis Gene frequency Genetic variability Geographic distribution Human Molecular epidemiology Multilocus sequence typing Nonhuman Nucleotide sequence Parasite identification Phylogeny Phylogeography Priority journal Sequence analysis South america Asymptomatic disease Blastocystis infections Classification Feces Female Genetics Genotype Isolation and purification Male Parasitology Severity of illness index Transmission Protozoal dna Asymptomatic diseases Humans 18s alleles Genotyping Subtypes protozoan Dna |
| Sumario: | Blastocystis is a cosmopolitan enteric protist colonizing probably more than 1 billion people. This protozoan exhibits genetic diversity and is subdivided into subtypes (STs). The aim of this study was to determine the distribution of Blastocystis STs in symptomatic and asymptomatic human samples from different countries of South America. A total of 346 fecal samples were genotyped by SSU rDNA showing ST1 (28.3%), ST2 (22.2%), ST3 (36.7%), ST4 (2%), ST5 (2.3%), ST6 (2%), ST7 (2.3%), ST8 (0.6%), ST12 (0.9%) and a novel ST (2.7%). These findings update the epidemiology of Blastocystis in South America and expand our knowledge of the phylogeographic differences exhibited by this stramenopile. © 2016 Elsevier B.V. |
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