Active clinical trials for "Virus Diseases"

The goal of this randomized clinical trial is to test the efficacy of high efficiency particulate air (HEPA) cleaners in reducing respiratory viral exposure and infections in elementary school classrooms. Classrooms will be randomized to active vs. sham HEPA cleaners. The main questions it aims to answer are: Do classroom HEPA cleaners reduce exposure to viruses? Do classroom HEPA cleaners reduce student and teacher infections? Do classroom HEPA cleaners reduce infections in family members?

The positive effects of fever are supported by a number of physiological, pathophysiological and clinical evidence. However, the negative attitude toward fever is widespread and have become persistent. According to sociological research, this is based on two main factors: comfort and fear. To change this negative attitude, awareness needs to be raised and the attitude toward fever among health care workers and the lay public needs to be reframed positively. Furthermore, the role of media users is essential, especially among the young generation. The current Hungarian recommendation/protocol is valid since 2011 (Professional protocol of the Ministry of National Resources: Caring for a child with fever, the recommendation of the College of Pediatric and Pediatric However, the practical implementation among health professionals and the laity public is low. Based on this protocol and current international guidelines (NICE) clinicians developed a protocol and register, where parents and caregivers can document the symptoms and runoff of fever as well as receive feedback on severity and appropriate management. The project aims to increase the evidence-based (EBM) guideline adherence, to reduce the unnecessary use of antipyretics and antibiotics, as well as the load on the current healthcare system. The documentation of the collected data allows the investigators to map and analyze (stats) socio-demographic behavior both on individual and societal level.

Approximately 40 million people in the US are served by private wells, many of which are untreated. The investigators estimate that 1.29 million cases of gastrointestinal illness (GI) per year are attributed to consuming water from untreated private wells in the US. These cases of GI can cause a significant burden in terms of health care costs and lost work/school days, as well as increased risk to developing longer term health complications. This impact is magnified when accounting for vulnerable populations such as children under the age of 5, the elderly and the immunocompromised. The investigators are preparing to conduct the first household randomized controlled trial (RCT) to investigate whether consuming well water treated by ultraviolet light (UV) compared to consuming untreated private well water decreases the incidence of self-reported gastrointestinal illness and respiratory infections in children under 5. The investigators will collect illness symptom data using a combination of weekly text messages and online illness questionnaires.

The goal of this observational analytic study with a cohort desing is to evaluate the epidemiology, risk factors and clinical phenotype of headache during Influenza infection. The study will be done in collaboration with the Healthcare Sentinel Network of Castile and Leon (Red Centinela Sanitaria de Castilla y León, RCSCYL) and the National Influenza Center of Valladolid (CNGV). First, the historical data of the VIGIRA network of the 2010-2022 flu seasons will be analyzed, assessing the epidemiology and risk factors of headache during Influenza infection; and second, a study with a case series design with prospective follow-up will be carried out for the incident cases of the 2022-2023 and 2023-2024 Influenza seasons, evaluating the clinical phenotype and the duration of the headache.

Herpesvirus infections may be severe in immunocompromised patients, with a high risk of complications and mortality. Recipients of hematopoietic stem cell transplant (HSCT) or patients receiving high-intensity chemotherapy for hematological malignancies are the most vulnerable individuals. Although the worldwide prevalence of herpes simplex virus 1 (HSV-1) and varicella-zoster virus (VZV), antiviral prophylaxis in seropositive HSCT recipients has significantly reduced the rate of infection. Acyclovir (ACV) is the first-choice drug for the prophylaxis or the therapy of that kind of infection. Since the beginning, ACV has demonstrated to be characterized by a large interpatient variability, especially in children. Therefore, therapeutic drug monitoring and pharmacokinetic studies may help in optimizing drug in children with malignancies.

Background: The disease Lassa fever mostly affects people in Western Africa. It is very similar to other diseases that cause fever, like malaria and yellow fever. People get Lassa fever from mice infected with Lassa virus. It can also be spread from body fluids of people with the disease. Researchers want to learn more about this virus in Mali so they can develop better tools to diagnose and prevent it. Objective: To find out how many people in certain areas of southern Mali have ever had Lassa fever and count how many people get the disease every year. Eligibility: People ages 6 months to 99 years who live in certain areas of Mali Design: Women who are could become pregnant will have a urine pregnancy test at each visit. Participants will be asked questions about their age, if they have ever had a fever, and if they have ever seen mice in or around their home. This will take about 20 minutes. Participants will give a blood sample using a needle in a vein in the arm. Young children will give it by pricking a finger or heel with a needle. Patients with a fever illness will have a medical history and physical exam. They will give blood and nasal swabs 3 times over 21 days. Participants may be asked to come back 1 time each year for up to 3 more years to take another sample of blood and answer more questions.

The coronavirus disease 2019 (COVID-19) outbreak is now considered as a public health emergency of international concern by the World Health Organization. In the context of the health emergency, research on the pathogen (the SARS-CoV-2 coronavirus), the disease and the therapeutic care is being organized. Research projects require the use of biological samples. This study aims at setting up a collection of biological samples intended for application projects in any discipline. The main objective of the study is to collect, process and store biological samples from patients and caregivers infected with SARS-CoV-2 (COVID-19) at the biological ressources center of the Bordeaux University Hospital.

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.

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.

Develop an emergency PanorOmics Wide Association Study (ePWAS) for the early, rapid biological and pathophysiological characterisation of known and novel Infectious Diseases in adult patients presenting to emergency departments with suspected, acute, community-acquired respiratory infectious disease (scaRID). Phase 1 Develop an ED-ID biobank (named ePWAS-RID). Phase 2 Targeted research for the discovery of novel diagnostics, prognostics and therapeutics