Setting: One reference and three zonal laboratories and 500 health facilities managing retreatment tuberculosis (TB) patients in Tanzania.
Objectives: The National Tuberculosis and Leprosy Programme (NTLP) requires that all notified cases of retreatment TB in Tanzania have sputum samples sent for culture and drug susceptibility testing (DST). This study determined 1) if the number of annually notified retreatment patients corresponded to the number of sputum samples received by the reference laboratories, and 2) the number of culture-positive samples and the number of cases undergoing DST.
Design: Nine-year audit of country-wide programme data from 2002 to 2010.
Results: Of the 40 940 retreatment TB patients notified by the NTLP, 3871 (10%) had their sputum samples received at the reference and zonal laboratories for culture and DST. A total of 3761 (97%) sputum samples were processed for culture, of which 1589 (42%) were found to be culture-positive and 1415 (89%) had DST performed.
Conclusions: There is a >90% shortfall between notified retreatment cases and numbers of sputum samples received, cultured and assessed for DST at reference and zonal laboratories. Steps needed to address this problem are discussed.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4463101 | PMC |
http://dx.doi.org/10.5588/pha.12.0103 | DOI Listing |
Microbiol Spectr
January 2025
Department of Laboratory Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea.
Unlabelled: Respiratory tract infections are major global health issues that require rapid and accurate diagnostic methods. Multiplex quantitative PCR (qPCR) is commonly used for pathogen detection in respiratory samples. However, the optimal specimen selection for detecting bacterial pathogens is not well-explored.
View Article and Find Full Text PDFAccess Microbiol
January 2025
Department of Microbiology, Lady Hardinge Medical College & Associated Hospitals, New Delhi, Delhi, India.
Coronavirus disease 2019 (COVID-19) pandemic has been prevailing for more than a year, associated with an increased number of opportunistic invasive fungal infections in patients who have been critically ill or immunocompromised. In this retrospective study, details of various clinical specimens received from suspected patients of fungal infections were studied. Fungal cultures were positive in 64% (51 out of 79) of COVID-19-positive patients and 43% (163 out of 381) of COVID-19-negative patients during the second wave of COVID-19 in 2021.
View Article and Find Full Text PDFUnder stress, bacteria display selective growth propensities on solid and liquid media. For Mycobacterium tuberculosis (Mtb), differentially culturable bacteria have been found in tuberculosis (TB) patient sputa. We hypothesized that antibiotic treatment can induce selective culturability in Mtb.
View Article and Find Full Text PDFSci Rep
January 2025
Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Growing evidences have suggested the airway microbiota may participate in lung cancer progression. However, little was known about the relationship between airway microbiota and lung cancer associated systemic inflammation. Here we aimed to explore the association between sputum microbiota and systemic inflammation in lung cancer.
View Article and Find Full Text PDFMicrobiol Spectr
January 2025
Department of Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA.
Tongue swabs represent a potential alternative to sputum as a sample type for detecting pulmonary tuberculosis (TB) with molecular diagnostic tests. The methods used to process tongue swabs for testing in the World Health Organization-recommended Xpert MTB/RIF Ultra (Xpert Ultra) assay vary greatly. Here, we aimed to identify the optimal tongue swab processing for Xpert Ultra testing.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!