Blastocystis hominis in two children of one family

West Indian Med J. 1990 Mar;39(1):57-8.


Two apparently healthy children from the same family were found to have moderate to heavy Blastocystis hominis in their stool samples whilst being investigated for intestinal symptoms: sporadic, painless, rectal bleeding in one and persistent diarrhoea in the other. After treatment with metronidazole, they had no further signs, and stool samples became negative. Eighteen months later, both were asymptomatic, and stool samples continued to be negative for the parasite.

Publication types

  • Case Reports

MeSH terms

  • Child
  • Family
  • Feces / parasitology
  • Female
  • Humans
  • Intestinal Diseases, Parasitic / drug therapy
  • Intestinal Diseases, Parasitic / epidemiology*
  • Intestinal Diseases, Parasitic / parasitology
  • Male
  • Metronidazole / therapeutic use
  • Protozoan Infections / drug therapy
  • Protozoan Infections / epidemiology*
  • Protozoan Infections / parasitology
  • West Indies / epidemiology


  • Metronidazole