Current status of research regarding Blastocystis sp, an enigmatic protist, in Brazil
Clinics
;
76: e2489, 2021. tab, graf
Article
in English
| LILACS
| ID: biblio-1278907
ABSTRACT
The present study aimed to evaluate the occurrence of Blastocystis sp. in Brazilian studies over a period of years (2000-2020), as well as point out relevant aspects of this enigmatic organism. We performed a literature search using six sources of international databases. The data were divided into diagnostic by parasitological and molecular techniques, and relevant aspects. After applying the inclusion and exclusion criteria, 52 studies were included in the final analysis. The occurrence of Blastocystis sp. in Brazil ranged from 0.5% to 86.6%, as determined using parasitological techniques. The highest occurrence was in the North (27.3%) and the lowest, in the Midwest region (13.4%). In Brazil, most studies have employed molecular techniques and are concentrated in the Southeast region. The Blastocystis sp. subtype ST3 had the highest average positivity, followed by ST1 and ST2. These findings represent a panorama that reflects the reality of Brazil; thus, we believe that the effectiveness of parasitological diagnosis should be considered with regard to making an appropriate choice of technique for detecting Blastocystis sp. Additionally, we emphasize the importance of further studies in the context of molecular epidemiology with regard to this genus. Blastocystis sp. is not well understood yet, and very little information regarding this genus is available; hence, further research regarding this genus is urgently needed.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Blastocystis Infections
/
Blastocystis
Type of study:
Prevalence study
/
Risk factors
Limits:
Humans
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Clinics
Journal subject:
Medicine
Year:
2021
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual de Londrina (UEL)/BR
/
Universidade de Sao Paulo/BR
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