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mycobacterium xenopi infection in patients with human immunodeficiency virus infection.mycobacterium xenopi is one of the most frequently isolated nontuberculous mycobacteria in ontario, canada. we reviewed the records of 28 human immunodeficiency virus (hiv)-infected patients from whom m. xenopi was isolated between 1982 and 1995. m. xenopi was recovered from respiratory specimens from 24 patients, most of whom had clinical and radiographic evidence of pulmonary disease. however, coexistent pulmonary infection due to other pathogens was found in 17 patients: pneumocystis carinii ...19979332511
isolation of non-tuberculous mycobacteria among patients with pulmonary tuberculosis in ontario, canada.there are limited data regarding the frequency and significance of co-isolating pulmonary non-tuberculous mycobacteria (ntm) in patients with pulmonary tuberculosis (ptb).201323575335
non-tuberculous mycobacteria in children with cystic fibrosis: isolation, prevalence, and predictors.screening for non-tuberculous mycobacteria (ntm) is recommended for adults with cystic fibrosis (cf). the relevance of this organism in north american pediatric cf patients is unclear as there is limited ntm prevalence data for children. we aimed to determine the prevalence of ntm in children with cf from a single expectorated sputum and identify clinical predictors of ntm isolation. additionally, we compared two different sputum decontamination methods before mycobacterial culture.200919830845
isolation prevalence of pulmonary nontuberculous mycobacteria in ontario in 2007.<span style="font-weight: bold">201121369546
pulmonary nontuberculous mycobacteria-associated deaths, ontario, canada, 2001-2013.survival implications of nontuberculous mycobacterial pulmonary disease (ntm-pd) and ntm pulmonary isolation without disease (ntm-pi) are unclear. to study deaths associated with ntm-pd and ntm-pi and differences in survival between them, we conducted a population-based cohort study of persons with microbiologically defined ntm-pd or ntm-pi diagnosed during 2001-2013 in ontario, canada. we used propensity score matching and cox proportional hazards models to compare survival. among 9,681 ntm-pd ...201728221106
aging, copd and other risk factors do not explain the increased prevalence of pulmonary mycobacterium avium complex in ontario.abstract introduction: the cause of increases observed in pulmonary mycobacterium avium complex (pmac) isolation and disease is unexplained. to explore possible causes of the increase in pmac isolation, and disease prevalence in ontario, canada, we studied age and other population-level risk factors. methods: we determined age and gender of patients with pulmonary mac disease in 2003-2008. we then estimated whether the potential effect of population aging and changes in prevalence of hiv infecti ...201121724552
pulmonary versus nonpulmonary nontuberculous mycobacteria, ontario, canada.in ontario, canada, during 1998-2010, nontuberculous mycobacteria (ntm) from pulmonary sites comprised 96% of species/patient combinations isolated; annual rates of isolation and cases increased steadily. ntm isolates from nonpulmonary sites comprised 4% of species/patient combinations; annual rates and cases were temporally stable. ntm increases were driven exclusively by pulmonary isolates and disease.201729048292
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