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  • Title: Legionnaires' disease at a medical center in southern Taiwan.
    Author: Hung TL, Li MC, Wang LR, Liu CC, Li CW, Chen PL, Syue LS, Lee NY, Ko WC.
    Journal: J Microbiol Immunol Infect; 2018 Jun; 51(3):352-358. PubMed ID: 28094205.
    Abstract:
    BACKGROUND/PURPOSE: Legionella pneumophila had been recognized as a pathogen for both healthcare-associated and community-acquired pneumonia. We aimed to evaluate clinical features and outcomes of patients with Legionnaires' disease at a tertiary medical center in southern Taiwan. METHODS: From January 2005 to December 2013, a retrospective study of adult cases of Legionnaires' disease was conducted in a 1200-bed tertiary hospital. Their medical records were reviewed for further evaluation and analysis. RESULTS: A total of 61 cases of Legionnaires' disease were identified during the study period. Their mean age was 61.1 years, with male predominance (43, 70.5%). Among them, 30 (49.2%) had healthcare-associated pneumonia (HCAP), 20 (32.8%) had community-acquired pneumonia, and notably 11 (18.0%) were caregivers. Patients with healthcare-associated pneumonia tend to have higher Charlson comorbidity scores than those with community-acquired pneumonia (3.6±2.4 vs. 1.9±1.9, p=0.008) and caregivers (0.5±0.5, p<0.001). Six patients died, resulting in an in-hospital mortality rate of 9.8%. Underlying cancer (66.7% vs. 20.0%, p=0.028) and a higher Charlson comorbidity score (4.7±2.6 vs. 2.2±2.2, p=0.013) were related to a fatal outcome. CONCLUSION: L. pneumophila remains an important pathogen for pneumonia acquired from the community or associated with healthcare facility. Healthy caregivers may potentially be at risk for Legionella infection in certain clinical settings.
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