Background: The epidemiology of nontuberculous mycobacteria (NTM) infections in the pediatric population is not well described. We estimated the incidence of NTM infection in Wisconsin children and adolescents, and the frequency and type of infection caused by different NTM pathogens. Associations between NTM infection and race/ethnicity and social disadvantage, respectively, were also investigated.
Methods: This retrospective cohort study evaluated reports of NTM infection in Wisconsin residents under 18 years of age submitted to a state-wide database between 2011 and 2018. Demographics of the cohort, including a social disadvantage score (Area Deprivation Index (ADI)), are described. Specimen type and NTM species are enumerated for reported isolates.
Results: There were 224 NTM isolates from 212 children and adolescents. Median age of participants was 3 years; 55 % were female. Cumulative incidence did not vary significantly between the larger racial groups or for the various ADI score groups. Compared to white participants (157), there was a significantly lower cumulative incidence of NTM infection in multiracial individuals (2). complex (MAC) was the most frequently isolated organism (69 %). The majority of isolates (52 %) were from skin and soft tissue, which included lymph node specimens. Annual incidence did not vary significantly over the study period.
Conclusions: The epidemiology of pediatric NTM infections in this cohort is consistent with previous pediatric reports of higher rate of infection in females and predominance of skin and soft tissue infections. Disparities in disease burden across racial/ethnic and socio-economic groups were not demonstrated, but these factors should be further explored in larger pediatric studies of diverse U.S. populations.
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http://dx.doi.org/10.1016/j.jctube.2024.100456 | DOI Listing |
Tuberculosis (Edinb)
January 2025
CSIR-Central Drug Research Institute, Lucknow, 226031, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, UP, India. Electronic address:
The limitations of existing mouse models of lung infection with Mycobacteroides abscessus impede drug discovery and development. In contrast to current animal models that introduce NTM intravenously or by intranasal/intra-tracheal instillation or via bronchoscopy-guided insufflation, we developed a dry powder inhalation (DPI) of M. abscessus ATCC 19977 that generated paucibacillary lung infection and histopathology in immunocompetent mice.
View Article and Find Full Text PDFAntimicrob Agents Chemother
January 2025
Norton Infectious Diseases Institute, Norton Healthcare, Louisville, Kentucky, USA.
Omadacycline is a novel antimicrobial belonging to the tetracycline class. It has the ability to evade both efflux and ribosomal methylation types of resistance and therefore has an expanded spectrum compared to other tetracycline agents. Omadacycline is active against a number of multidrug-resistant bacteria, including macrolide and doxycycline-resistant methicillin-resistant (MRSA), vancomycin-resistant Enterococcus, and several enteric gram-negative bacilli.
View Article and Find Full Text PDFJ Infect Public Health
January 2025
Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China. Electronic address:
Background: Nontuberculous mycobacteria (NTM) are emerging pathogens responsible for increasing skin and soft tissue infections (SSTIs) globally. However, the diagnosis and treatment of NTM SSTIs face significant challenges due to the lack of standardized guidelines. This study reviewed the clinical characteristics, diagnostic challenges, and treatment outcomes of NTM SSTIs in a large cohort from a tertiary referral center in Beijing, China.
View Article and Find Full Text PDFIDCases
December 2024
Department of Medicine, Mary Washington Healthcare, Fredericksburg, VA, USA.
is a rapidly growing nontuberculous mycobacterium (NTM) that is ubiquitous in the environment and is associated with skin and soft tissue infections (1). Because is an opportunistic infection, it can present as skin abscess, cellulitis, osteomyelitis, pulmonary infection or disseminated infections, particularly in individuals with compromised immune systems or underlying lung conditions such as cystic fibrosis or bronchiectasis. is one of the most pathogenic rapidly growing mycobacteria (RGM).
View Article and Find Full Text PDFIJID Reg
March 2025
SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Human Genetics, Stellenbosch University, Cape Town, South Africa.
Objectives: Nontuberculous mycobacteria (NTM) are increasingly recognized opportunistic pathogens found ubiquitously in the environment. The presence of multiple NTM species at the site of disease complicates diagnosis and treatment.
Case And Management: A 40-year-old patient who tested positive for HIV, with an absolute clusters of differentiation 4+ T-cell count of 3 cells/µl and cryptococcaemia, presented with hemoptysis, productive cough, and weight loss.
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