Blastocystis hominis and travelers

Muhammad R. Sohail, Philip R. Fischer

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

B. hominis is a unicellular protozoan commonly identified in stool specimens of travelers who have returned from tropical countries. It has a world-wide distribution, and infection is more common in developing countries compared to industrialized nations. Clinical features of illness which have been attributed to Blastocystis include nausea, anorexia, abdominal pain, flatulence and acute or chronic diarrhea. The preferred method of diagnosis is a permanently stained smear of an unconcentrated stool specimen. The presence of B. hominis in stool specimens of symptomatic travelers should prompt clinicians to search for other unrecognized co-pathogens. Due to controversy regarding the pathogenicity of B. hominis in humans, clinicians are often faced with the dilemma of whether or not they should offer treatment for B. hominis infection in returned travelers. The most commonly used drugs for treatment include metronidazole and trimethoprim-sulfamethoxazole (TMP-SMX), when treatment is deemed necessary. Prevention in travelers should focus on food and water precautions as the organism is transmitted by the fecal-oral route.

Original languageEnglish (US)
Pages (from-to)33-38
Number of pages6
JournalTravel Medicine and Infectious Disease
Volume3
Issue number1
DOIs
StatePublished - Feb 2005

Fingerprint

Blastocystis hominis
Blastocystis Infections
Blastocystis
Flatulence
Metronidazole
Sulfamethoxazole Drug Combination Trimethoprim
Anorexia
Developed Countries
Nausea
Abdominal Pain
Developing Countries
Virulence
Diarrhea
Therapeutics
Food
Water
Infection
Pharmaceutical Preparations

Keywords

  • Blastocystis hominis
  • Diarrhea
  • Infection
  • Protozoa
  • Traveler

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Blastocystis hominis and travelers. / Sohail, Muhammad R.; Fischer, Philip R.

In: Travel Medicine and Infectious Disease, Vol. 3, No. 1, 02.2005, p. 33-38.

Research output: Contribution to journalArticle

Sohail, Muhammad R. ; Fischer, Philip R. / Blastocystis hominis and travelers. In: Travel Medicine and Infectious Disease. 2005 ; Vol. 3, No. 1. pp. 33-38.
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