Publications by authors named "Fu-der Wang"

Background: Antivirals are effective in reducing hospitalisation and death in mild-to-moderate coronavirus 2019 (COVID-19) patients. We estimated the antiviral uptake of nirmatrelvir/ritonavir and molnupiravir in adult patients with a syndrome coronavirus 2 (SARS-CoV-2) infection during the Emergency Use Authorization (EUA) period in Taiwan.

Methods: A retrospective cohort study was conducted in Taiwan between January 2022 and December 2022.

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Background: Infections caused by Klebsiella pneumoniae are common and result in high mortality rates. In vitro studies demonstrated the potency of cefoperazone/sulbactam (CPZ/SUL) against Klebsiella pneumoniae. However, the clinical efficacy of CPZ/SUL for the treatment of K.

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Herpes zoster (HZ) is a painful, vesicular, cutaneous eruption from reactivation of varicella zoster virus (VZV), which can lead to potentially debilitating complications. The lifetime risk of HZ is estimated to be 20%-30% in the general population, with an increased risk in the elderly and immunocompromised populations. The most effective strategy to prevent HZ and its complications is by vaccination.

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Article Synopsis
  • This study evaluated the effectiveness of cefoperazone/sulbactam (CPZ/SUL) for treating infections caused by ESBL-producing Enterobacterales, specifically looking at clinical success and 30-day mortality rates in a retrospective review from Taiwan (2015-2020).
  • The results showed an 82.7% clinical success rate and a 9.1% mortality rate among the 110 patients studied, with better outcomes when the drug concentrations were at or below a certain level (≤32/32 mg/L).
  • Higher comorbidity (Charlson index ≥6) was linked to lower success rates, while higher disease severity (SOFA score ≥6) was
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Coronavirus disease-19 (COVID-19) is an emerging infectious disease caused by SARS-CoV-2 that has rapidly evolved into a pandemic to cause over 600 million infections and more than 6.6 million deaths up to Nov 25, 2022. COVID-19 carries a high mortality rate in severe cases.

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Introduction: The clinical efficiency of cefoperazone/sulbactam (CPZ/SUL) against Escherichia coli bacteremia was unknown. This study aimed to explore the relationship between CPZ/SUL MIC values and clinical outcomes in Escherichia coli bacteremia.

Methods: A multicenter, retrospective, observational cohort study was conducted in Taiwan between January 2015 and December 2020.

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is a common pathogen of nosocomial pneumonia worldwide and community-acquired pneumonia (CAP) in Asia. Previous studies have shown that bacteremic CAP is associated with high mortality. We aimed to revisit bacteremic pneumonia in the current era and determine the risk factors associated with 28-day mortality.

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Colistin is one of the last-resort options for carbapenem-resistant Klebsiella pneumoniae (CRKP) infections if novel antibiotics are unavailable, where the development of colistin resistance during treatment represents a major challenge for clinicians. We aimed to investigate the risk factors associated with the development of colistin resistance in patients with CRKP infections following colistin treatment. We conducted a retrospective case-control study of patients with CRKP strains available before and after colistin treatment at a medical center in Taiwan, between October 2016 and November 2020.

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Antimicrobial drug resistance is one of the major threats to global health. It has made common infections increasingly difficult or impossible to treat, and leads to higher medical costs, prolonged hospital stays and increased mortality. Infection rates due to multidrug-resistant organisms (MDRO) are increasing globally.

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BackgroundThe Delta and Omicron variants of SARS-CoV-2 are currently responsible for breakthrough infections due to waning immunity. We report phase I/II trial results of UB-612, a multitope subunit vaccine containing S1-RBD-sFc protein and rationally designed promiscuous peptides representing sarbecovirus conserved helper T cell and cytotoxic T lymphocyte epitopes on the nucleocapsid (N), membrane (M), and spike (S2) proteins.MethodWe conducted a phase I primary 2-dose (28 days apart) trial of 10, 30, or 100 μg UB-612 in 60 healthy young adults 20 to 55 years old, and 50 of them were boosted with 100 μg of UB-612 approximately 7 to 9 months after the second dose.

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Reassessing the continuing need for and choice of antibiotics by using an antibiotic "time out'' program may reduce unnecessary treatment. This study aimed to explore the effect of an antibiotic stewardship program (ASP) on the antibiotics consumption, incidence of resistant bacterial infections and overall hospital mortality in a tertiary medical center during the study period 2012-2014. An ASP composed of multidisciplinary strategies including pre-prescription approval and post-approval feedback and audit, and a major "time out'' intervention (shorten the default antibiotic prescription duration) usage was introduced in year 2013.

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(1) Background: The presentation of chronic pulmonary aspergillosis (CPA) ranges from single granuloma to fibrosis in the affected lung. CPA can be divided into five categories according to European Respirology Society (ERS) guidance but is usually assessed by clinical physicians. Computer-based quantitative lung parenchyma analysis in CPA and its correlation with clinical manifestations, systemic inflammation, and angiogenesis have never been investigated.

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Several studies have demonstrated that malnutrition is a negative prognostic factor for clinical outcomes. However, there is limited evidence for the effect of malnutrition on clinical outcomes in patients with candidemia. We investigated the relationship between malnutrition and all-cause 28-day mortality among patients with non- candidemia.

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Many treatments including antiviral and non-antiviral drugs, and critical care are considered for the management of coronavirus disease 2019 (COVID-19). Practice recommendations need to be updated and graded according to the critical evaluation of rapidly emerging literature. In June 2020, Research Center for Epidemic Prevention-National Yang Ming Chiao Tung University formed a task group comprising infectious disease clinicians, pulmonologists, and intensivists with varied areas of expertise.

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Article Synopsis
  • This study examined how effective various antibiotics, including cefiderocol and new combinations of β-lactamase inhibitors (BLIs), are against resistant strains of Pseudomonas aeruginosa and Acinetobacter baumannii.
  • Researchers tested a total of 405 isolates from patients in Taiwan and found that cefiderocol showed strong effectiveness, inhibiting 100% of Pseudomonas and 94.9% of Acinetobacter at low concentrations.
  • The study highlights the urgent need for on-site tests for these antibiotics, as antibiotic resistance is a significant threat to global health, with resistance developing quickly even before new treatments are widely available.
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  • Colistin is commonly used for treating infections from carbapenem-resistant gram-negative bacteria, but it can cause kidney damage (nephrotoxicity), which needs more detailed study comparing its different formulations.
  • A study with ICU patients showed that those treated with Locolin® experienced a higher rate of acute kidney injury (AKI) compared to those treated with Colimycin®, indicating that the choice of formulation matters.
  • Factors like septic shock and incorrect dosages increased the risk of nephrotoxicity, but having colistin-induced kidney issues didn’t lead to a higher death rate among patients.
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Objectives: The aim of this study was to investigate the trends in serotypes and in vitro antimicrobial susceptibility of Streptococcus pneumoniae causing adult invasive pneumococcal disease (IPD) to dalbavancin, telavancin, tedizolid, eravacycline, omadacycline and other comparator antibiotics from 2017-2020 following implementation of the 13-valent pneumococcal conjugate vaccine (PCV-13) and during the COVID-19 (coronavirus disease 2019) pandemic.

Methods: During the study period, 237 S. pneumoniae isolates were collected from non-duplicate patients, covering 15.

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Background/purpose: Streptococcus pneumoniae causes pneumonia and other invasive diseases, and is a leading cause of mortality in the elderly population. The present study aimed to provide current antimicrobial resistance and epidemiological profiles of S. pneumoniae infections in Taiwan.

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Background: Coronavirus disease 2019 (COVID-19) manifests symptoms as common etiologies of respiratory tract infections (RTIs). During the pandemic of COVID-19, identifying the etiologies correctly from patients with RTI symptoms was crucial in not only disease control but preventing healthcare system from collapsing. By applying sensitive PCR-based molecular assays, we detected the etiologic agents and delineated the epidemiologic picture of RTIs in the early phase of COVID-19 pandemic.

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Article Synopsis
  • The study focused on the effectiveness of different antibiotics against carbapenem-nonsusceptible Enterobacterales (CNSE) derived from 16 hospitals in Taiwan, analyzing 201 non-duplicate isolates, mainly E. coli and K. pneumoniae.
  • Results showed cefiderocol was the most effective, with only a small percentage of isolates being resistant, while ceftazidime/avibactam and cefepime/zidebactam also showed high susceptibility rates.
  • Carbapenemase genes were present in a notable portion of K. pneumoniae isolates, indicating significant resistance, but the study highlights the potential of specific antibiotics as treatment options for these resistant strains.
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Multicenter surveillance of antimicrobial susceptibility was performed for 235 vancomycin-resistant Enterococcus faecium (VREfm) isolates from 18 Taiwanese hospitals. The minimum inhibitory concentrations (MICs) of eravacycline, omadacycline, lipoglycopeptides, and other comparator antibiotics were determined using the broth microdilution method. Nearly all isolates of VREfm were not susceptible to teicoplanin, dalbavancin, and telavancin, with susceptibility rates of 0.

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Objectives: Pneumonia caused by carbapenem-resistant Klebsiella pneumoniae (CRKP) is associated with high mortality. However, clinical studies on CRKP infections often exclusively involve bacteraemia, with only a few studies having focused on pneumonia. This retrospective study was conducted to investigate the clinical and microbiological characteristics of pneumonia caused by CRKP.

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Background: Chronic infections played a detrimental role on health outcomes in the aged population, and had complex associations with lymphocyte subsets distribution. Our study aimed to explore the predictive roles of chronic infections, lymphopenia, and lymphocyte subsets on unexpected admission and mortality in the institutionalized oldest-old during 3 year follow-up period.

Results: There were 163 participants enrolled prospectively with median age of 87.

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Background: Carbapenem-resistant Acinetobacter species have emerged as notorious pathogens causing nosocomial infections. Several phenotypic methods have been developed for detecting carbapenemase production in Enterobacteriaceae. The accuracy of these methods in the prediction of carbapenemase production in Acinetobacter species has not been studied well.

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Colistin is one of the last-resort antibiotics for treating carbapenem-resistant Klebsiella pneumoniae (CRKP). However, colistin resistance in CRKP poses a global antimicrobial crisis, as therapeutic options are limited. We investigated risk factors for in vivo emergence of colistin resistance in CRKP and explored the underlying resistance mechanisms.

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