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Tuberculosis is a major public health concern, and diagnostic strategies applied to animal populations are scarce. As part of ongoing efforts to control tuberculosis dissemination at our animal facility, two non-human primates (NHP, Saimiri sciureus) presenting cutaneous lesions were examined for mycobacterial infection. Both animals tested positive for acid-fast bacilli and Mycobacterium tuberculosis using a molecular assay (IS6110 PCR). Animals were euthanized and several samples were tested for M. tuberculosis using the Xpert MTB/RIF assay. Many samples were positive for M. tuberculosis and rifampicin resistance, and some produced mycobacterial growth. Oral swabs from cage mates were then tested with Xpert MTB/RIF, and the majority tested positive for M. tuberculosis and rifampicin resistance, and produced growth in culture. To our knowledge, this is the first report of multidrug-resistant mycobacterial infection in NHP. Additionally, our data shows that the Xpert MTB/RIF assay can be useful as a screening tool for tuberculosis infection in NHP.
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http://dx.doi.org/10.1016/j.tube.2017.08.003 | DOI Listing |
Int J Antimicrob Agents
September 2025
Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Laboratory Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan; Department of Laboratory Medicine, National Taiwan U
Objectives: To evaluate the diagnostic performance of Roche cobas MTB and MTB-RIF/INH assays for detecting Mycobacterium tuberculosis complex (MTBC) and resistance to isoniazid (INH) and rifampicin (RIF).
Methods: This multicenter study was conducted in Taiwan between September 2023 and June 2024. Clinical specimens were collected from adult patients with presumptive tuberculosis (TB).
Open Forum Infect Dis
September 2025
DSI/NRF Centre of Excellence for Biomedical TB Research, Faculty of Health Sciences, University of the Witwatersrand, National Health Laboratory Service, Johannesburg, South Africa.
Background: Tuberculosis (TB) diagnosis remains difficult in children under 5 years of age (under-5s), who have high TB morbidity and mortality rates. In a high-burden TB setting, we investigated the diagnostic characteristics of Xpert MTB/RIF Ultra testing of tongue swabs (TS-XU) collected from under-5s.
Methods: In a masked, prospective, observational study, tongue swabs were collected from enrolled hospitalized under-5s deemed high risk for TB disease who were categorized into 1 of the following: confirmed, unconfirmed, or unlikely TB.
BMC Musculoskelet Disord
September 2025
Departments of Orthopedics, Hangzhou Ninth People's Hospital, Hangzhou, Zhejiang, 310000, China.
Background: The burden of spinal tuberculosis (STB) in China remains substantial, with the country ranking third in the number of tuberculosis cases globally in 2022, among the 30 countries with a high tuberculosis burden. In East China, few large-scale studies have been conducted on STB.
Methods: This retrospective study analyzed 893 confirmed STB cases (2010-2020).
Pathogens
July 2025
Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Arstadveien 21, 5009 Bergen, Norway.
Extrapulmonary tuberculosis (EPTB) remains diagnostically challenging due to its paucibacillary nature and variable presentation. Xpert and culture are limited in EPTB diagnosis due to sampling challenges, low sensitivity, and long turnaround times. This study evaluated the performance of the MPT64 antigen detection test for diagnosing EPTB, particularly tuberculous lymphadenitis (TBLN) and tuberculous pleuritis (TBP), in a high-TB, low-HIV setting.
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July 2025
Department of Biostatistics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India.
Extra-pulmonary tuberculosis (EPTB) can affect any organ of the body, producing a wide variety of clinical manifestations that make the diagnosis and treatment of EPTB challenging. The optimum treatment varies depending on the site of EPTB, its severity, and response to treatment. There is often uncertainty about the best management practices, with a significant departure from national guidelines.
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