ArticleAnnals of clinical microbiology and antimicrobials2025
The bacterial etiology and antimicrobial susceptibility of lower respiratory tract infections in Vietnam.
Article in Annals of clinical microbiology and antimicrobials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Article
- Epidemiology, Antimicrobial Resistance, and Seasonal Dynamics of Respiratory Bacterial Pathogens in a Saudi Tertiary Care Hospital (2023-2025).Infection and drug resistance · 2026Article
- Phage therapy for multidrug-resistant pulmonary infections: bridging precision matching, lung delivery, host immunity, and clinical translation.Frontiers in cellular and infection microbiology · 2026Review
- Synergistic Antibacterial Activity of Azithromycin-Loaded Chitosan Nanoparticles Alone and in Combination with Cetirizine Dihydrochloride Against Resistant Isolates of Respiratory Tract Infections.Antibiotics (Basel, Switzerland) · 2025Article
- High Prevalence of Multidrug-resistantMateria socio-medica · 2025Article
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18 authors.
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Abstract
backgroundLower respiratory tract infection (LRTI) remains the leading infectious cause of morbidity and mortality globally. Key bacterial pathogens include Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli, Staphylococcus aureus and Streptococcus pneumoniae. This study examined the prevalence and antimicrobial resistance patterns of major bacterial pathogens from community- and hospital-acquired LRTIs across six major hospitals in Vietnam.
methodsBetween January 2022 and May 2023, 1000 bacterial isolates were collected through an isolate-based surveillance. Species identification and antimicrobial susceptibility testing were performed by VITEK-2/Phoenix M50, with MICs determined by E-test or broth microdilution. Multiplex PCRs were used to detect common AMR genes.
resultsA. baumannii (49.6%), P. aeruginosa (21%), K. pneumoniae (18.6%) were predominant, followed by S. aureus (6.7%), E. coli (3.9%) and S. pneumoniae (0.2%). Most isolates (94.4%) were identified from hospital-acquired cases. High prevalence of MDR and carbapenem resistance were identified in A. baumannii (96% and 95%), P. aeruginosa (56.7% and 57.1%), and K. pneumoniae (78% and 69.2%), respectively. Notably, resistance to ceftazidime-avibactam was detected in K. pneumoniae (34.3%), P. aeruginosa (29%), and E. coli (7.7%), while colistin resistance was found in K. pneumoniae (18.2%) and A. baumannii (2.8%). MRSA prevalence was 79.1%, though S. aureus remained susceptible to vancomycin, linezolid and ceftaroline. Most bla
conclusionsCarbapenem-resistant Gram-negative pathogens were predominant among hospital-acquired LRTIs in Vietnam, with notable resistance to ceftazidime-avibactam and colistin. The lack of effective treatment for A. baumannii remains a major concern. We found a strong correlation between AMR phenotype and genotype among K. pneumoniae and E. coli, supporting gene-based therapy to guide ceftazidime-avibactam use. However, the presence of disrupted bla
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