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First Time Isolation of Mycobacterium hassiacum From a Respiratory Sample.

ABSTRACT: We describe the first isolation of Mycobacterium hassiacum, a rapid-growing, partial acid-resistant mycobacterium, in a respiratory specimen from a patient with exacerbated chronic obstructive pulmonary disease. To provide therapeutic recommendation for future cases, antibiotic susceptibility testing of 3 clinical isolates was performed by broth microdilution. All strains tested showed susceptibility to clarithromycin, imipenem, ciprofloxacin, and doxycycline. The role of M hassiacum as a respiratory pathogen remains unclear and needs to be evaluated by future reports.

SUBMITTER: Deinhardt-Emmer S

PROVIDER: S-EPMC5757423 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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First Time Isolation of Mycobacterium hassiacum From a Respiratory Sample.

Deinhardt-Emmer Stefanie S Höring Steffen S Mura Christian C Hillemann Doris D Hermann Beate B Sachse Svea S Bohnert Jürgen J Löffler Bettina B

Clinical medicine insights. Circulatory, respiratory and pulmonary medicine 20180103

We describe the first isolation of Mycobacterium hassiacum, a rapid-growing, partial acid-resistant mycobacterium, in a respiratory specimen from a patient with exacerbated chronic obstructive pulmonary disease. To provide therapeutic recommendation for future cases, antibiotic susceptibility testing of 3 clinical isolates was performed by broth microdilution. All strains tested showed susceptibility to clarithromycin, imipenem, ciprofloxacin, and doxycycline. The role of M hassiacum</ ...[more]

PMID: 29326536

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Project description:INTRODUCTION: Mycobacterium europaeum, a slow-growing nontuberculous mycobacteria belonging to the Mycobacterium simiae complex, was described after the seminal characterization of five isolates collected from three sputum specimens and a jaw gland biopsy in Italy, Greece and Sweden. Five respiratory tract isolates were further reported in Iran. Here, we report the first isolation of M. europaeum in France, in the respiratory tract of a patient co-infected with human immunodeficiency virus and hepatitis C virus. CASE PRESENTATION: A 49-year-old Caucasian woman with a 26-year history of human immunodeficiency virus-hepatitis C virus co-infection was admitted for significant influenza-like syndrome in a context of repetitive exacerbations of chronic obstructive pulmonary disease. Significant biological parameters included lymphocytes of 1.6G/L including 237/mm3 T4 lymphocytes, a human immunodeficiency virus viral load of 1.6 log and a hepatitis C virus viral load of 6 log. Reverse-transcriptase polymerase chain reaction of her nasopharyngeal aspiration confirmed influenza A H1N1. Three sputum specimens lacked acid-fast bacilli but one grew mycobacteria identified by using matrix-assisted laser desorption ionization/time-of-flight mass spectrometry as M. europaeum with a 1.56 log score. A 1,482-bp 16S ribosomal ribonucleic acid gene sequence yielded 99% similarity with both Mycobacterium parascrofulaceum ATCC BAA-614 and M. europaeum DSM 45397T and partial rpoB polymerase chain reaction-sequencing yielded a 725-bp sequence exhibiting 100% similarity with M. europaeum strain DSM 45397T. CONCLUSIONS: We report the first isolation of M. europaeum in France, in the respiratory tract of a patient co-infected with human immunodeficiency virus and hepatitis C virus. M. europaeum warrants further attention in immunosuppressed patients with influenza, using matrix-assisted laser desorption ionization/time-of-flight mass spectrometry and rpoB partial sequencing as tools for its accurate identification.

Dataset Information

First Time Isolation of Mycobacterium hassiacum From a Respiratory Sample.

Publications

First Time Isolation of <i>Mycobacterium hassiacum</i> From a Respiratory Sample.

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