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Epidemiology of Mycobacterium abscessus

脓肿分枝杆菌 流行病学 医学 分枝杆菌 病毒学 微生物学 生物 病理 肺结核
作者
César Cristancho-Rojas,Cara D. Varley,Sofia Chapela Lara,Yousra Kherabi,Emily Henkle,Kevin Winthrop
出处
期刊:Clinical Microbiology and Infection [Elsevier]
被引量:9
标识
DOI:10.1016/j.cmi.2023.08.035
摘要

Abstract

Background

Nontuberculous mycobacteria (NTM) are highly abundant in soil, dust, and water sources, making human–pathogen contact frequent and recurrent. NTM represents over 200 species/subspecies; some are considered strict or opportunistic pathogens. Mycobacterium abscessus, often regarded as one of the most antibiotic-resistant mycobacteria, is the second most frequent NTM pulmonary disease pathogen.

Objectives

To describe the epidemiology of M. abscessus through a literature review focusing on clinical aspects.

Sources

We conducted searches on PubMed and Web of Knowledge for articles published from 2010 to the present using the keywords 'Mycobacterium abscessus', 'Nontuberculous mycobacteria', and 'epidemiology'. Our search prioritized original reports on the occurrence of NTM and M. abscessus infection/disease.

Content

Advanced molecular and genetic diagnostic techniques have refined the M. abscessus complex (MABC) microbiological classification over the last few decades. MABC can adhere to surfaces and form a biofilm. This characteristic and its resistance to common disinfectants allow these microorganisms to persist in the water distribution systems, becoming a constant reservoir. The frequency and manifestation of NTM species vary geographically because of environmental conditions and population susceptibility differences. MABC lung disease, the most frequent site of NTM infection in humans, is often seen in patients with underlying lung diseases such as bronchiectasis, whereas MABC disseminated disease is related to immunosuppression. Skin and soft tissue infections are associated with surgical or injection procedures. Epidemiological evidence suggests an overall increase in MABC infection and disease in the last decade.

Implications

Establishing the burden of this disease is challenging because of varying measures of incidence and prevalence, referral bias, and differences in medical practices and reporting. Furthermore, environmental and structural determinants, infection routes, and MABC pulmonary disease mechanisms require additional investigation. This review contributes to a better understanding of the epidemiology of MABC, which could inform clinical practice and future research.
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