Epidemiology, species composition and genetic diversity of tetra- and octonucleated Entamoeba spp. in different Brazilian biomes.

ABSTRACT:

Background

Entamoeba species harbored by humans have different degrees of pathogenicity. The present study explores the intra- and interspecific diversity, phylogenetic relationships, prevalence and distribution of tetra- and octonucleated cyst-producing Entamoeba in different Brazilian regions.

Methods

Cross-sectional studies were performed to collect fecal samples (n = 1728) and sociodemographic data in communities located in four Brazilian biomes: Atlantic Forest, Caatinga, Cerrado, and Amazon. Fecal samples were subjected to molecular analysis by partial small subunit ribosomal DNA sequencing (SSU rDNA) and phylogenetic analysis.

Results

Light microscopy analysis revealed that tetranucleated cysts were found in all the studied biomes. The highest positivity rates

SUBMITTER: Calegar DA 

PROVIDER: S-EPMC7968159 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature