Active clinical trials for "Infections"

An open access study that will define and collect digital measures of coughing in multiple populations and public spaces using various means of audio data collection.

Background: People who have had contact with a person with a known SARS-CoV-2 infection are being told to self-quarantine for 14 days. This is done to avoid potential virus spread. But the actual time it takes for a person to develop an infection after being exposed to the virus is not well known. The proper quarantine time could be less or more than 2 weeks. Researchers hope this study can be used to help improve public health guidelines for quarantines, social distancing, and returning to work after a possible SARS-CoV-2 exposure. Objective: To better understand how long it takes a person to develop (or not develop) an infection with the SARS-CoV-2 virus after they have had contact with a person who has a confirmed infection. Eligibility: NIH staff members age 18 and older who had recent contact with a person who has a SARS-CoV-2 infection Design: Participants will have 3 study visits at the NIH Clinical Center. They may be asked to have an extra visit depending on the test results at the third visit. At each visit, participants will give a blood and saliva sample. It will be used to test for SARS-CoV-2 antibodies. Their temperature will be taken. They will complete a short survey to collect data about possible COVID-19 symptoms. At the first visit only, they will also complete a survey that asks about their recent social contacts. Two types of nasal samples will be collected at each visit. These samples will be tested for the SARS-CoV-2 virus. a swab will be inserted deep into the back of the nose and a swab will be inserted to the middle of your nose. Participation lasts 3 to 4 weeks.

In December 2019, Coronavirus infection (COVID-19) was identified as causing serious respiratory infection in humans. Initially COVID-19 was propagated by infected symptomatic individuals; currently the disease is disseminated by asymptomatic COVID-19 positive subjects. The prevalence of asymptomatic COVID-19 individuals is unknown. Due its physiologic immune suppression, pregnancy is a vulnerable time for severe respiratory infections including COVID-19. Limited information is available regarding the impact of COVID-19 in pregnancy and the prevalence and demographic profile of asymptomatic pregnant women. Despite reports of 15-20% positive COVID-19 tests in women admitted to Labor and Delivery, professional obstetric medical societies still recommend not prioritizing testing of patients who are asymptomatic. In the USA, COVID-19 symptomatic patients come predominantly from lower income, Black and Latino communities. No data are available on the rate and demographic distribution of asymptomatic positive COVID-19 pregnant women. To minimize the risk of inadvertent exposure asymptomatic individuals, recently our institution started COVID-19 testing in all admitted pregnant women. The investigators expect to gain knowledge on the impact of COVID-19 in pregnant women especially if asymptomatic and compare to other respiratory infections.

This study evaluates the implementation of a machine learning based clinical decision support system for treatment of patients presenting with an urinary tract infection in general practice. The software was developed to support general practitioners in the choice of antibiotic regimen.

the number of immunocompromised patients hospitalized in the intensive care units (ICU) is increasing. They are at higher risk of colonization and/or infection with multi-resistant bacteria (MDR). However this risk is not well characterized. ICU acquired infections related to MDR are associated with increased morbidity and mortality. The aim of this study is to compare the incidence of ICU-acquired colonization and ICU-acquired infection related to MDR between immunocompromized and immunocompetent patients. The risk factors for ICU-acquired colonization and ICU-acquired infections, and their impact on outcome will also be evaluated and compared between immunocompromised and immunocompetent patients.

Surfactant protein plays important role in innate immunity against respiratory viral infections. However, investigators have shown that the surfactant protein polymorphisms are associated with severity of various pulmonary diseases such as respiratory syncytial virus (RSV), tuberculosis, pediatric acute lung injury. COVID-19 virus gains entry through the respiratory system and responsible for death due to acute respiratory failure. There is a considerable heterogeneity in presentation of COVID-19 infection from asymptomatic patients to severe infection requiring intensive care and some may die. Considering reports of COVID-19 related deaths/severe disease in the same family, it is possible that genetics play an important role in severity of COVID-19 infection. Investigators propose to study the association of surfactant proteins in COVID-19 patients. Key Objectives: a) Characterize genetic markers within the surfactant protein genes in COVID-19 positive patients, b) To determine if there is a correlation between certain genetic markers and the severity of COVID-19 infection which may be used as a prognostic marker, c) To correlate genetic markers with immune studies.

Unlike other respiratory viruses such as influenza and Respiratory Syncytial Virus (RSV) where the child is the essential reservoir and central vector of intrafamilial contamination, the child is likely to be a small player in the transmission of Severe Acute Respiratory Syndrome CoronaVirus 2 (SRAS-CoV2) infection. This study aims to describe the age category of the first contact, within 14 days before the appearance of the first symptoms of the index case in order to describe the age categories of this first contaminant, globally, in the group of children and finally in the group of adults. This work is intended to provide food for discussion and to justify the distancing and containment measures imposed on children when their isolation has a deleterious impact that has now been established for some children.

This research is being done to study the ability of C. difficile to colonize the colonic mucosa of individuals with no prior history of C. difficile infection.

The study is being done to identify types of bacteria associated with the lining of the large intestine in people who have recently been treated for C. difficile infection to determine if there are features associated with recurrent disease.

The purpose of this prospective, observational study was to evaluate frequency and characteristics of low-grade infections of the intervertebral discs in an unselected real-life patient population undergoing surgery for degenerative pathologies of the spine.