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Objectives: The performance of the new Respiratory Pathogen panel (fluorescent probe melting curve, FPMC) for the qualitative detection of 12 organisms (chlamydia pneumoniae, mycoplasma pneumoniae, adenovirus, influenza A virus, influenza B virus, parainfluenza virus, rhinovirus, etc.) was assessed.
Methods: Prospectively collected nasopharyngeal swab (NPS) and sputum specimens (n = 635) were detected by using the FPMC panel, with the Sanger sequencing method as the comparative method.
Results: The overall percent concordance between the FPMC analysis method and the Sanger sequencing method was 100% and 99.66% for NPS and sputum specimens, respectively. The FPMC testified an overall positive percent concordance of 100% for both NPS and sputum specimens. The FPMC analysis method also testified an overall negative percent concordance of 100% and 99.38% for NPS and sputum specimens, respectively.
Conclusions: The FPMC analysis method is a stable and accurate assay for rapid, comprehensive detecting for respiratory pathogens.
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http://dx.doi.org/10.1186/s12985-024-02430-x | DOI Listing |
Background: To improve the molecular diagnostic yield for Aspergillus spp. from respiratory samples, we developed and evaluated a new DNA extraction method directly from respiratory samples combined with in-house Aspergillus real-time PCR.
Methods: We developed a method using beads and resin, where a sample is centrifuged to separate the supernatant and pellet.
Background: Actinomyces graevenitzii is a relatively uncommon Actinomyces species, which is an oral species and predominantly recovered from respiratory locations [1,2]. It is a gram-positive anaerobic bacteria or microaerobic filamentation bacteria, which can induce pyogenic and granulomatous inflammation characterized by swelling and concomitant pus, sinus formation, and the formation of yellow sulfur granules. All tissues and organs can be infected; the most common type involves the neck and face (55%), followed by the abdominal and pelvic cavities (20%).
View Article and Find Full Text PDFInfect Disord Drug Targets
September 2025
Department of Microbiology, College of Medical Laboratory Science, Sudan University of Science and Technology, P.O. Box 407, Khartoum, Sudan.
Introduction: The rise of Multidrug-resistant (MDR) Enterobacter species is a significant global health concern, particularly in hospital settings where they contribute to nosocomial infections. This study aimed to determine the prevalence of MDR Enterobacter spp. in clinical specimens from Khartoum State, Sudan, to detect key resistance genes (CTX-M, AmpC, OXA-48, NDM-1, VIM, IMP, MCR-1, SHV, and TEM), and to analyze the correlation between genotypic and phenotypic resistance patterns.
View Article and Find Full Text PDFInfect Drug Resist
August 2025
Department of Clinical Laboratory, Chongqing Red Cross Hospital (People's Hospital of Jiangbei District), Chongqing, People's Republic of China.
Objective: To comprehensively investigate the epidemiology and analyze the antimicrobial resistance of Haemophilus influenzae isolated from children in Chongqing before, during, and after the COVID-19 pandemic.
Methods: A total of 21,723 Haemophilus influenzae strains from four Chongqing hospitals during 2019-2024 were included. Antimicrobial susceptibility testing was conducted according to Clinical and Laboratory Standards Institute 2024 breakpoints using Kirby-Bauer method or automated systems.
J Microbiol Immunol Infect
August 2025
Siriraj Integrative Center for Neglected Parasitic Diseases, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand. Electronic address:
Background: To compare diagnostic performances and accuracy of non-invasive specimens and bronchoalveolar lavage fluid (BALF) for diagnosing Pneumocystis pneumonia (PCP) in immunocompromised pneumonia patients.
Methods: A prospective study of 112 immunocompromised patients to evaluate P. jirovecii fungal loads in paired sputum and BALF from the same patients.