Active clinical trials for "Communicable Diseases"

This is a cross-sectional, observational study of high-risk HPV status, cervical cytology and HPV vaccine uptake and response in young women with perinatally acquired HIV.

This double-blind, randomized, placebo-controlled study aims to investigate whether a throat spray containing probiotic bacteria (i.e. microbiome spray) can reduce the symptoms and complaints of the SARS-CoV-2 virus in patients with mild to moderate symptoms. In addition, the aim is to investigate whether the microbiome spray can prevent transmission of the SARS-CoV-2 virus to household members.

Aim: To investigate if host factors, such as composition and diversity of intestinal microbiota and/or genetic determinants, are associated with a higher risk of recurrence of Clostridioides difficile infection (CDI). To generate a predictive tool based on epidemiological, clinical, genetic and microbiologic variables aimed to identify patients at a higher risk of CDI recurrence in a context of optimized ICD management. Design: Multicenter prospective cohort study. Patients: Older than 18 years patients with CDI diagnosis, made by IDSA criteria, in the participant centers. Follow-up: A stewarship program aimed to improve CDI management, including early detection of CDI recurrence, will be implemented in the participant centers. Blood samples for genetic testing and stool samples for intestinal microbiome studies will be collected. Variables and data analysis: The primary outcome variable will be the emergence of CDI recurrence. Potential independent predictors of recurrence, including genetic and microbiological factors, will be assessed. A predictive tool based on independent predictors of recurrence will be built in a development subpopulation. The performance of the model will be assessed by ROC curves, and sensititvity, especificity, as well as negative and positive predictive values will be calculated, both in the development subpopulation and in a validation subset.

Transplant recipients are treated with immunosuppressive drugs to avoid rejection of the transplanted organ. As the medication impairs the immune response, it also increases the risk of serious infections and cancer in transplant recipients compared with the general population. Previous studies have shown a close association between Epstein-Barr virus (EBV) and post transplant lymphoproliferative disorder (PTLD), with frequent demonstration of the virus in lesional tissues. Transplant recipients without evidence of EBV infection prior to transplantation (EBV seronegative) are at particularly high risk of developing PTLD. Other risk factors include a high viral load. As part of a preventive approach against PTLD, several transplantation units now monitor the occurrence of EBV DNAemia after transplantation. However, there is little evidence to guide this strategy; nor is there consensus concerning either the best specimen to use for EBV analysis (whole blood or plasma) or the appropriate clinical action to take if EBV DNAemia is detected. Our aim is to estimate the incidence and clinical consequences of Epstein-Barr virus (EBV) DNAemia in whole blood and plasma in renal transplant recipients, and to determine if persistence of EBV DNAemia can predict excessive immunosuppression as indicated by the incidence of infections requiring hospitalisation, EBV driven PTLD and mortality.

Staphylococcus aureus osteoarticular infections, in particular those associated with the presence of implant, relapse in 20% of cases. Currently, the reasons for these relapses are poorly understood, whether on the microbiological or clinical side. The aim of this study is to improve knowledge on persistence of mechanisms of S. aureus

The study is about the role of cellular neural networks-genetic algorithm in the diagnosis of periprosthetic hip infections. A retrospective case series of septic and aseptic loosening of primary hip arthroplasties is selected. The diagnosis of septic loosening is made according to well-established criteria (CDC 2014 and culture samples). The serial radiographs of the selected patients are processed using cellular neural networks-genetic algorithm. The purpose of this study is to evaluate whether neural networks (cellular neural networks-genetic algorithm), applied to conventional radiographies, are accurate, sensitive and specific for the early-discrimination of a periprosthetic hip infection, already diagnosed with well-recognized methods (CDC 2014).

In this study the Investigators aim to deploy UTE and HP 129Xe MRI for structural and functional evaluation of persistent lung abnormalities in COVID-19 survivors.

IRIS (Infection with RespIratory Syncytial Virus) is an observational, multi-center study enrolling infants with severe RSV infection and healthy controls. Inclusion criteria are age below two years and hospitalization due to RSV infection at three German sites. Exclusion criteria are premature birth, congenital or acquired bronchopulmonary or cardiac diseases, and immunodeficiency. Blood and respiratory specimens are collected upon admission, and RSV and other pathogens are analyzed by multiplex polymerase chain reaction (PCR). Further biomaterials including plasma, nasal lining fluid, blood cells, DNA, and RNA specimens are sampled in a dedicated biobank. Detailed information on demographic characteristics and medical history is recorded, as well as comprehensive clinical data including vital signs, medication, and interventions.

Epicutaneo-caval catheters (ECCs) are widely used in neonatal intensive care units (NICUs). They are small catheters inserted via superficial veins of the limbs or scalp using direct vein visualization The pathogenic microorganisms colonized inside catheters can easily form a bacterial biofilm and eventually spread with blood flow which causes bloodstream infection. Many authors have studied the antibiotic-lock therapy (ALT) in which a high-dose antibiotic solution is dripped and maintained in the catheter cavity for a certain period and can dissolve the biofilm formed on the wall to reduce the colonization of the bacteria and kill the embedded bacteria.The aim of the study is to evaluate the patency of the Epicutaneo-caval catheter after its closure for 1 hour.

This study is being performed to see if 18F-FDS is a useful imaging agent for diagnosis of bacterial infections. Position Emission Tomography / computed tomography (CT) scans will be obtained after intravenous injection of 18F-FDS to determine biodistribution and pathophysiology in diseased subjects.