Geographic distribution of human Blastocystis subtypes in South America Academic Article

abstract

  • © 2016 Elsevier B.V.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.

publication date

  • 2016/7/1

edition

  • 41

keywords

  • Blastocystis
  • Epidemiology
  • Protozoa
  • Ribosomal DNA
  • South America
  • Stramenopiles
  • distribution
  • epidemiology
  • genetic diversity
  • genetic variation
  • geographical distribution
  • protist
  • protists
  • sampling

International Standard Serial Number (ISSN)

  • 1567-1348

number of pages

  • 3

start page

  • 32

end page

  • 35