Active clinical trials for "Communicable Diseases"

The investigators are currently completing a data collection to try to optimize pediatric patients' preoperative screening, in the setting of an upper respiratory infection.

In order to improve the investigators knowledge about uveitis and the underlying mechanism of disease, the investigators propose collecting blood from patients with uveitis, isolating DNA and sequencing the DNA to identify genetic mutations or associations in these patients.

Optimal surgical therapy (debridement in chronic osteomyelitis; device exchange in patients with chronic prosthetic joint infection (PJI)) could be sometimes non-feasible, especially in the elderly population. Therefore, a medical therapy with oral prolonged suppressive antibiotic therapy (PSAT) seems to be an option to prevent recurrence and prosthesis loosening. Unfortunately, some patients are infected with resistant pathogens for which oral antibiotics are not suitable. Subcutaneous (SC) administration of injectable intravenous antibiotics as prolonged suppressive antibiotic therapy could be a convenient way to limit catheter-related complications and facilitate ambulatory care. However, there are few data concerning the development of resistance under subcutaneous prolonged treatment with betalactamine. The aim of this study is just to constitute a biological collection from samples from the Gut microbiota in patients having a bone or joint infection treated by a suppressive subcutaneous antibiotherapy with betalactamine. Later analysis will be led on those samples to detect the acquisition of resistance or not.

Immunocompetent subjects with high load of Epstein-Barr virus DNA (EBV-DNA) in peripheral blood will be enrolled and prospectively followed up to track the natural histories of the chronic high load of EBV virus. The primary goal of this study is to explore the association of peripheral high load of EBV with the hematological malignancies, and second goal is to investigate the genetic mechanisms of immune escape and tumorigenesis of chronic EBV infection.

This protocol is being established to cover the evaluation of patients with inflammatory and/or infectious diseases which are not covered under previously existing protocols. The purpose of such a protocol is that frequently patients are referred to us with either diagnosed or undiagnosed illnesses which would be of interest to our teaching program or which would serve as a source of patients to subsequently be entered into established, ongoing protocol studies. Such patients will be admitted to the protocol and handled according to accepted medical practice of diagnosis and treatment....

This screening study will examine the causes of immune disorders affecting white blood cells, which defend against infections and will try to develop better means of diagnosis and treatment of these immune disorders. This is a 2 visit screening study and patients determined to be of interest for additional study or treatment will be asked to provide consent for enrollment into an appropriate NIH follow up study. This study does not cover the cost of the first visit to NIH for travel or lodgings but does cover the subsequent visit if there is one. A financial assessment may determine if the patient is eligible for financial assistance. This study does not enroll children under the age of 2. Patients known to have or suspected of having increased susceptibility to infections and their blood relatives may be eligible for this study, at the discretion of the principal investigator. Patients and family members may undergo the following procedures: Personal and family medical history. Physical examination and blood and urine tests. Studies of breathing function (pulmonary function testing) Dental examination. Eye examination. Genetic Testing Stored specimens for future analysis Microscopic examination of saliva, wound drainage or tissues removed for medical reasons for cell, hormone or DNA studies. In addition, patients will be asked to obtain permission for investigators to obtain their medical records, previous test results, or radiographic studies prior to the first visit. Patients will be asked to undergo imaging studies, such as a chest X-ray, CT scan or MRI scan.

This study will examine the symptoms, course of disease and treatment of non-tuberculous mycobacterial (NTM) infections, as well as the genetics involved in these infections. Patients with NTM have recurrent lung infections and sometimes infections of the skin and other organs as well. They may also have curvature of the spine, barrel chest, and heart valve weakness. The study will compare the features of NTM with those of Job syndrome and cystic fibrosis, other diseases involving recurrent infections of the lungs and possibly other organs. Patients with diagnosed or suspected non-tuberculous mycobacterial infection, cystic fibrosis or Job syndrome may be eligible for this study. All participants will have a medical and family history, blood and urine tests, imaging studies that may include X-rays, computed tomography (CT) or magnetic resonance imaging (MRI) scans, and DNA and other genetic studies. In addition, all patients with Job syndrome and cystic fibrosis, and patients with NTM who have lung disease undergo the following procedures: Scoliosis survey X-rays of the spine to look for curvature or other abnormalities of the spinal column Echocardiography imaging test that uses sound waves to examine the heart chambers and valves Electrocardiogram measurement of the electrical activity of the heart Pulmonary function tests breathing tests to measure how much air the patient can move into and out of the lungs Body measurements measurements of height, weight, arm span, finger length, etc. Joint function assessment of joint mobility using different maneuvers to test flexibility of joints and ligaments Examination of physical features that might be associated with NTM, such as high arched palate of the mouth, flat feet, or certain skin features Dermatology (skin) examination for reactive skin conditions or other skin problems and possibly a skin biopsy (surgical removal of a small skin tissue sample for microscopic examination) Interview with genetics specialist These tests may require several days to complete. Patients with NTM will also be examined by a cystic fibrosis specialist and may have a sweat test. In addition, NTM patients will be asked to return to NIH every year for 5 years for follow-up tests, if medically indicated, including CT of the chest, scoliosis survey and examination by other specialists.

This study evaluates the prognostic role of the change of arborescent air bronchogram, a typical ultrasonographic finding of lung consolidation due to pneumonia, in the management of pediatric CAP.

The goal of this prospective study is to compare rapid molecular technique BioFire Pneumonia Panel Filmarray and conventional culture-based methods in the microbiologic diagnosis on bronchoalveolar lavage of lung transplant patients. The main questions it aims to answer are: determine the microbiological concordance between molecular diagnostic and conventional culture techniques on donor's bronchoalveolar lavage before lung transplantation determine the microbiological concordance between molecular diagnostic and conventional culture techniques on recipient's bronchoalveolar lavage, performed 72 hours after lung transplantation determine the microbiological concordance between molecular diagnostic and conventional culture techniques in detecting molecular resistance patterns determine the difference in time to microbiological results between molecular diagnostic and conventional culture techniques determine time to clinical decision based on molecular diagnostic techniques compared to conventional culture techniques

iSpecimen aims to create a clinical partner network of hospitals, laboratories, academic institutions, and other healthcare organizations ("institutions") capable of providing researchers and educators ("researchers") with annotated biospecimens for use in biomarker discovery and validation; diagnostic test and instrumentation development and validation; therapeutics development; other medical research including the impact that various specimen collection and handling methods and conditions have on research results; and in education such as researcher or physician training (collectively "research").