Occurrence and risk factors of nontuberculous mycobacteria in tuberculosis-suspected patients in the north of Iran.

ABSTRACT:

Background and objectives

Some Nontuberculous Mycobacteria (NTM) can occasionally infect the human population and cause infections having symptoms similar to tuberculosis (TB). This study tried to provide updated data about the frequency and diversity of NTM species.

Materials and methods

Suspicious samples of Mycobacterium tuberculosis (MTB) with both positive results in Ziehl-Neelsen (ZN) staining and Löwenstein-Jensen medium culturing were evaluated during January 2016 and December 2018 in Gorgan, Iran. After determination of MTB isolates by the growth rate, pigmentation status, the niacin test, and the insertion sequence 6110 (IS6110) PCR assay, other unknown isolates (presumably NTM) were detected by the 16S rDNA sequencing method and drawing the phylogene

SUBMITTER: Shafipour M 

PROVIDER: S-EPMC8408032 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature