View clinical trials related to Communicable Diseases.
Filter by:Chronic exposure to (cigarette smoke) CS causes biological changes, including airway remodeling and changes in baseline gene expression profiles at the level of the epithelium. Our own data indicate that chronic exposure to CS suppresses the ability of epithelial cells to enhance antiviral gene expression in response to influenza infection and activate host defense responses. While there is a large body of evidence supporting the notion that exposure to CS causes significant changes in host defense responses, which may be linked to permanent changes in epithelial cells at the genomic level, it is not known whether new and emerging tobacco products have similar or distinct effects. Using live attenuated influenza virus (LAIV) inoculation in human volunteers, this study will compare influenza-induced responses in non-smokers (NS), cigarette smokers (CS), e-cigarette smokers (EC), hookah smokers (HS), and Little Cigar smokers (LCS) in vivo. This will be done by analyzing nasal viral titers, antiviral defense responses, inflammatory mediator production, and markers of immune responses for LAIV-induced responses between the different groups of volunteers.
The aim of this study is to determine performance characteristics of the FebriDx test in predicting viral or bacterial infection etiology among febrile (observed or reported) patients presenting the emergency department, urgent care centers or primary care offices with suspected acute respiratory tract infection.
- Lower limb amputations are performed usually as a last resort in patients with acute and chronic limb ischaemia (CLI) caused by vascular disease, poorly controlled diabetes or, infection. - In the period 2003-2008 there were approximately 5,000 amputations per year in the UK. - The Centre for Disease Control defines a Surgical Site Infection (SSI) as an infection within 30 days of an operation or up to one year if an implant is left in place and the infection is related to an operative procedure. - Figures from the Surgical Site Infection Surveillance reported that the highest rate of surgical site infection was reported in association with lower limb amputation at 13.1%. - There is a clear under-representation and the infection rate within our institution is approximately 25% which reflects the infection rate reported in a recent trial by Sadat et al (22.5%) - Prevention of surgical site infections is of paramount importance to patients, healthcare providers and policy-makers, as they impact on morbidity and mortality and have significant time and cost implications. - Currently there is NO CONSENSUS as to what the best practice is towards antibiotic administration in such patients. From a questionnaire-based audit we performed including vascular departments across the entire country, practice varies in both course duration (single dose → 5 days antibiotic course) as well as choice of antibiotics. - The guideline at our institution suggests the 5-day course of antibiotic prophylaxis. The course duration varies depending on the clinical picture as well as microbiology results and recommendations. - There are no randomised control trials that have investigated this aspect of patient care. We have set up one such trial and through it, we are looking to establish a standard practice which will hopefully be as beneficial as possible to the patient but also cost-effective for NHS.
Worldwide, central nervous system infections such as inflammation of brain (encephalitis), inflammation of meninges (meningitis) and sudden onset of weakness of muscles which maybe infectious in origin result in significant illness and death and healthcare costs. Vast majority of central nervous system infections remain without an identifiable cause. There is also concern about new and emerging infections. This study thus intends to fill in the gaps in knowledge with regards to central nervous system infections in Singapore to give a thorough description of burden of causes of central nervous system infections and detection of outbreaks of new pathogens. Patients suspected of central nervous system infection will be recruited from 5 restructured Singapore hospitals and their blood and other clinical specimens will be sent for testing. Patients will also be followed up to assess long term outcomes and socio-economic costs of these infections. This will help clinicians, policymakers and public health officials in estimating financial and societal costs of CNs infections in Singapore.
The main objective of the study is to characterize the virulence factors of SGA and identify immunological and / or genetic factors predisposing to infections in children hospitalized with invasive GAS infection.
Background Women undergoing Caesarean Section (CS) have an increased risk of postpartum infections compared to women undergoing vaginal delivery. In Denmark the incidence of post-CS infections is 7-10%. The most common infections are endometritis, Urinary tract infections (UTI) and wound infections (WI). Prophylactic antibiotics are effective in preventing postoperative infections and national guidelines recommend that antibiotics should be administered as a single dose immediately before surgical incision. CS is an exception to this pre-incision administration approach. National guidelines recommend administration of antibiotics after umbilical cord clamping to avoid exposure of the child to antibiotics before birth. Recent studies of antibiotic prophylaxis for CS suggest that prophylactic antibiotics administered before incision compared to after umbilical cord clamping may reduce post-CS infections by up to 50%. Two Cochrane reviews from 2012 criticize these types of studies for lack of data for outcomes on the baby and on late infection in the mother. This study is a double-blinded randomized controlled trial with a concurrent Health Economic Assessment. The study will examine the effect of change in timing of prophylactic antibiotics on the rate of post-CS infections (endometritis, UTI and WI). The study will be performed at the obstetric departments at Odense University Hospital (OUH), Hvidovre Hospital (HH) and Hospital South West Jutland (HSWJ) in collaboration with the Department of Clinical Microbiology, OUH, to ensure that the most appropriate antibiotic regime is used. Furthermore, collaboration with a neonatologist will ensure appropriate assessment of neonatal outcome. The investigators plan to enroll the first patient at OUH February 2013. HH and HSWJ will follow with a couple of months delay. The inclusion period is scheduled to last until the investigators have 2844 participants, who have answered the questionnaire. The investigators expect to complete the inclusion period in October 2014 (last patient last visit, LPLV). Microbiological analyzes and data processing is expected to be completed one year after the LPLV. The study population is all women delivering a child by CS during the project period, at Department of Gynaecology and Obstetrics of OUH, HH and HSWJ. Objective: Investigate whether and by how much antibiotics administered 15-60 minutes before incision versus after umbilical cord clamping reduces the rate of postpartum infections in a Danish population of women undergoing CS. Hypothesis: Antibiotics administered pre-incision will result in fewer postoperative infections than antibiotics administered after the umbilical cord is cut. Hypothesis: Antibiotics administered before incision are cost-effective, compared to administration after umbilical cord clamping, measured by post-CS infection and as cost per Quality Adjusted Life Year (QALY).
The study patients are patients suffering from primary or secondary immunodeficiencies investigated in the Hospital Necker for a suspected infectious disease. The study purpose is to assess the performance of a High Throughput Sequencing method, the PATHOQUEST method (from sample preparation to bio informatic analysis), versus the classic diagnostic approach. The study will evaluate the capacity of the PATHOQUEST method to detect pathogens responsible for an infectious disease episode and will also evaluate the delay of obtention of results compared to the classic diagnostic approach.
To assess the feasibility of donor-derived interferon (IFN)-γ positive select-ed virus-specific T-cells using the cytokine capture system® (CCS) and the safety of subsequent infusion in recipients of hematopoietic stem cell transplantation (HSCT) with treatment refractory post-transplant viral infections. The CCS has already been successfully used in clinical studies in Germany and United Kingdom (UK).
This study aims to assess how large an additional disease burden and what extra costs are generated by antibiotic resistance in patients suffering from infections caused by gram-negative bacteria, such as Escherichia coli and Pseudomonas aeruginosa, in hospitals in the Netherlands.
This is a study to evaluate the efficacy of Ceftaroline in the treatment of bone and joint infections.