Antimicrobial Resistance (AMR)

The goal of this observational study is to evaluate the effectiveness of implementing Koran Sepsis, or sepsis chart, a paper-based order set designed to guide the implementation of the One-hour Sepsis Bundle, in improving adherence to early sepsis management and reducing 7-day mortality among adult patients with sepsis presenting to the Emergency Department. The main questions it aims to answer are: 1. Does implementation of a sepsis chart improve adherence to the One-hour Sepsis Bundle among adult patients with sepsis? 2. Does implementation of a sepsis chart reduce 7-day mortality among adult patients with sepsis? Researchers will compare the period before and after implementation of Koran Sepsis to determine whether its implementation improves adherence to the One-hour Sepsis Bundle and reduces 7-day mortality. Participants will: * Receive standard clinical care for sepsis, with management documented during the first hour after sepsis is suspected or diagnosed. * Receive care guided by sepsis chart after its implementation at the participating hospital. * Have clinical data collected from their medical records, including adherence to the One-hour Sepsis Bundle and time to administration of broad-spectrum antibiotics. * Be followed for seven days to determine their mortality outcome. The study will include adult patients aged ≥18 years diagnosed with sepsis according to the Sepsis-3 definition who present to the Emergency Department and are admitted to one of two participating hospitals: Cipto Mangunkusumo and Fatmawati General Hospital.

This study aims to compare the diagnostic performance of conventional blood culture with two molecular-based diagnostic approaches, Hybrispot DNA Flow and metagenomic next-generation sequencing (mNGS), for the identification of microorganisms in patients with sepsis. The study will evaluate the turnaround time of each diagnostic method and assess their potential impact on the time to definitive antimicrobial therapy and subsequent clinical outcomes. The study is led by Robert Sinto, an infectious disease physician at Dr. Cipto Mangunkusumo National Referral Hospital (RSCM), the national referral hospital in Indonesia. Conventional blood culture, which serves as the standard microbiological diagnostic method, may require about 5 to 7 days to obtain a final result. In comparison, Hybrispot DNA Flow and mNGS detect microbial genetic material and may provide microbiological results within approximately 2 to 3 days. By comparing these diagnostic strategies, the study seeks to determine whether molecular-based approaches can facilitate more rapid pathogen identification and support earlier optimization of antimicrobial therapy. Participation in the study is voluntary. Participants may withdraw from the study at any time without affecting the medical care they receive. Participants may also request information about their diagnostic results and may ask the research team to clarify any aspect of the study that they do not understand.

Carbapenemase-producing Enterobacterales (CPE) are multidrug-resistant bacteria that can colonize the gastrointestinal tract of hospitalized patients and spread within intensive care units (ICUs). Some colonized individuals may carry a particularly high bacterial burden and contribute disproportionately to environmental contamination and transmission to other patients. Identifying these high-risk individuals could improve infection prevention and control strategies. This prospective observational study will be conducted in the Adult Intensive Care Unit of Hospital Italiano de Buenos Aires. Patients identified as colonized with CPE through routine surveillance will undergo quantitative culture and real-time polymerase chain reaction (PCR) testing of rectal swabs to measure bacterial load. Environmental samples will also be collected from high-touch surfaces surrounding colonized patients. In selected cases, molecular typing methods will be used to evaluate genetic relatedness between patient and environmental isolates and to investigate possible transmission events. The primary objective is to determine the correlation between bacterial load measured by culture and the PCR cycle threshold (Ct) value. Secondary objectives include evaluating the association between bacterial load and environmental contamination, and assessing whether patients with higher bacterial loads are more likely to contribute to transmission within the ICU. Results may help identify patients with increased dissemination potential and support targeted infection prevention interventions.

A multicenter international prospective observational pharmacological study in adult patients (≥18 years) treated with ceftazidime/avibactam (CAZ/AVI) alone or with CAZ/AVI plus fosfomycin (FOS) for infection due to carbapenem-resistant Enterobacterales (CRE) (KPC and/or OXA-48).

Antimicrobial resistance (AMR) is a critical issue, especially in Africa, with resistance to common antibiotics reaching 100% in some areas. In Tanzania, limited access to culture tests and antibiograms forces healthcare providers to rely on experience for prescribing, heightening AMR risks. This study aims to determine the effectiveness of mobile antibiograms in optimizing empirical antibiotic therapy in tertiary hospitals in Tanzania.

This is an explorative, mono-center study including prospectively collected patient samples from the University Hospital of Basel. It is to investigate antimicrobial resistance (AMR) including three clinical manifestations of infectious diseases: urinary tract infection, pneumonia and deep-seated infections. The focus is on four bacteria (E. coli, Klebsiella species, S. aureus, P. aeruginosa) that are part of the high priority list of World Health Organization (WHO). Residual patient samples are analysed for proteomic, metabolomic and transcriptomic analysis, immunocytochemical or fluorescence in-situ hybridisation (FISH) analysis, flow cytometry analysis (FACS) and immunophenotyping and exploration of bacterial properties.

A multicenter, national, prospective, observational pharmacological study of patients with difficult-to-treat Gram-negative infections treated with ceftazidime/avibactam (CAZ/AVI) or cefiderocol (CEF) monotherapy or combination therapy with ceftazidime/avibactam associated with fosfomycin (FOS) or cefiderocol associated with fosfomycin.