Active clinical trials for "Infections"

Background: - The immune system is made up of special cells, tissues, and organs that fight infections. Problems with this system may lead to frequent, severe, or unusual fungal infections. These infections are often difficult to treat. Researchers want to collect blood and tissue samples from people who have unusual, persistent or severe fungal infections or immune problems that increase the risk of these infections. Objectives: - To collect medical information and samples for a long-term study of people with immune system problems that lead to fungal infections. Eligibility: People with a history of fungal infections caused by immune system problems. Parents, children, and siblings of this group. Healthy volunteers not related to the first two groups. Design: This long-term study may last for up to 10 years. Those in the study may need to provide new information about every 6 months. The procedures for each person may vary with the particular diagnosis and the extent of fungal infection. Healthy volunteers may have only one or two visits. At the first visit, those in the study will have a full medical history and physical exam. They will also provide blood. Research procedures may include the following: Saliva, urine or stool testing Mouthwash collection for DNA testing Collection of cheek cells, nail clippings, or vaginal fluid Tests of leftover tissue or body fluid from previous medical procedures Skin or oral mucous membrane biopsy Collection of white blood cells Followup visits will involve a physical exam and updated medical history. Blood, saliva, urine, or nail clipping samples may be taken for ongoing studies. Any additional tests or exams required by the study doctors may also be done. Participants may withdraw from the study pool at any time.

The Hyper IgE Syndromes (HIES) are primary immunodeficiencies resulting in eczema and recurrent skin and lung infections. Autosomal dominant Hyper IgE syndrome (AD-HIIES; Job's syndrome) is caused by STAT3 mutations, and is a multi-system disorder with skeletal, vascular, and connective tissue manifestations. Understanding how STAT3 mutations cause these diverse clinical manifestations is critical to our complete understanding of bone metabolism, bronchiectasis, dental maturation, and atherosclerosis. Bi-allelic mutations in DOCK8 cause a combined immunodeficiency previously described as autosomal-recessive Hyper IgE syndrome. These individuals suffer from extensive viral infections as well as have a high incidence of malignancy and mortality. The pathogenesis of this disease and long-term natural history is being investigated. Therefore, we seek to enroll patients and families with a confirmed or suspected diagnosis of HIES syndrome for extensive phenotypic and genotypic study as well as disease management. Patients will be carefully examined by a multidisciplinary team and followed longitudinally. Through these studies we hope to better characterize the clinical presentation of STAT3-mutated HIES, DOCK8 deficiency and other causes of the hyper IgE phenotype, and to be able to identify further genetic etiologies, as well as understand the pathogenesis of HIES. We seek to enroll 300 patients and 300 relatives.

Bone and joint infections (BJI) are rare serious pathology which can lead to a very heavy handicap and sometimes to the life threatening. These are devastating diseases whose diagnosis is difficult. They are known to be associated with high mortality rates (5%) and significant morbidities responsible for functional sequelae (40% of patients) with an individual cost (prolonged hospitalization, altered quality of life) and societal (work stoppage, partial or total disability, temporary or permanent) extremely high. These bone and joint infections have a significant impact on the quality of life of those affected who, in addition to their infection, are reduced in their autonomy and often need to be taken care of outside their home, sometimes away from home. To the knowledge of investigators, there are few studies on the measurement of quality of life in patients with osteoarticular infection. The aim of this study is to implement the EQ-5D-3L validated quality of life questionnaire and the EVA scale (created by EuroQol Group) for each patient with a prosthetic joint infection (IPA) on prosthesis during their medical care in the department of Infectious and Tropical Diseases.

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.

This study involves evaluating pediatric patients with central lines to determine differences in line complications and quality of life in those with a novel central line securement device (wrap) as compared to those who use a traditional securement device (dressing).

The objectives are to evaluate whether variations in vaginal and/or urinary and/or fecal microbiome predispose postmenopausal women to recurrent cystitis. This will be explored using comparison of microbiome profiles between those with recurrent UTI compared to age-matched women without recurrent UTI.

This observational study will investigate suspected infectious diseases of unknown etiology prospectively during outbreaks and at healthcare facilities, and retrospectively through historical samples where no etiology was ever determined. The study is designed to rapidly, flexibly, and consistently respond to any potential scenario in Indonesia, and the data collected will provide needed insight into the landscape of infectious diseases in the country. By better understanding the infectious causes of outbreaks and difficult hospitalized cases, the Indonesian Ministry of Health will be able to more accurately and efficiently control infectious diseases and craft healthcare policies.

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.

Patients of scientific interest who have provided a commercial sample to LabCorp or one of its' affiliates will have their de-identified remnant samples and/or data used for research and development. Other commercial patients will be followed up on after informed consent is obtained.

Many ambulatory networks are mainly based on diagnoses made by first-line physicians not specifically trained to join the network. Here we aim to set up a surveillance network on pediatric infectious diseases with an investment in teaching with specific trainings of participating pediatricians, increasing in use of point of care tests, and automated data extraction from the computers of the pediatricians.