An update on prevalence of slow-growing mycobacteria andrapidgrowing mycobacteria retrieved from hospital water sources inIran – a systematic review

Background and Aim : This study aimed to assess the prevalence of slow growing mycobacteria(SGM) and rapid-growing mycobacteria (RGM) retrieved from hospital water sources in Iran from۲۰۱۶ to ۲۰۲۰.Methods : The review was conducted to get eligible published studies from ۱st January ۲۰۱۶ to۲۵th March ۲۰۲۰ based on PRISMA protocol. A combination of related words from the MedicalSubject Heading Terms (MeSH), with (AND, OR) were used to search for published studiesreporting the prevalence of nontuberculous mycobacteria (NTM) in Scopus, MEDLINE, Web ofSciences, Google Scholar, and Iranian databases. Then data from the studies were extracted andreported.Results : Our study showed that different water sources of hospitals were contaminated withNTMs. The prevalence of RGM isolates in hospital water samples varied between ۴۲.۲%–۶۷.۵%,and the prevalence of SGM varied between ۳۲.۵%–۵۷.۷%, respectively. M. lentiflavum (۸۴.۷%),M. avium complex (۲.۸%–۵۶.۴%) and M. gordonae (۲.۸%–۵۶.۲%) were the most prevalent NTMspecies amongst SGM, whereas M. fortuitum (۲.۹%–۴۴.۲%), M. chelonae (۸%–۳۶.۸%) , M.mucogenicum (۸%–۲۵.۶%) were the most leading NTM isolates among RGMConclusion : A high prevalence of NTM was reported from hospital environments particularlyhospital water sources which can colonize medical devices, solutions, and water used for patientsand cause nosocomial infection. Therefore, the hospitals should check the microbiological qualityof the water used

کلیدواژه ها:

Nontuberculous mycobacteria ، prevalence ، hospital ، water resources ، environment