eISSN: 1732-2707
ISSN: 1730-1270
HIV & AIDS Review. International Journal of HIV-Related Problems
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1/2018
vol. 17
 
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abstract:

Symptomatic Blastocystis spp. infection among returners from intertropical regions – is the diagnostics of acquired immunodeficiency necessary?

Lukasz Pielok
,
Szymon P. Nowak
,
Matylda Kludkowska
,
Jerzy Stefaniak

HIV AIDS Rev 2018; 17, 1: 54-57
Online publish date: 2018/03/13
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Blastocystis hominis (stramenopila), an absolute anaerobic organism, has been considered a commensal of human large intestine, as even its massive invasion usually is asymptomatic. Nowadays, Blastocystis spp. has been mentioned more frequently as a potential etiologic agent of a chronic diarrhea, mainly among immunocompromised individuals, but also among patients with functional bowel disorders, malnourished, with chronic disease, or after organs transplantations. Blastocystis may also be responsible for traveler’s diarrhea.

Gastrointestinal disorders are quite common problems for individuals returning from different climatic and sanitary areas – countries located mainly in the tropics. Majority of such cases are patients suffering from self-limiting gastrointestinal tract. However, some patients, especially those who do not respond to empirical treatment in the primary health care, require more specialized diagnostics; this applies to the group of patients with prolonged diarrhea. Usually, they are caused by Escherichia coli infection. In this paper, we describe two travelers from Africa and India with prolonged diarrhea. The parasitic stool evaluation revealed massive Blastocystis hominis infestation. It was the reason to provide further diagnostics for acquired immunodeficiency, which gave the final diagnosis of HIV infection.
keywords:

Blastocystis spp, diarrhea, diagnostics, HIV

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