Active clinical trials for "Influenza, Human"

The primary immunogenicity objective is to assess the antibody response and T-cell response of split-virion inactivated A (H1N1) vaccine. Participants will include up to 20 healthy persons of age 20 and older who have no history of novel influenza H1N1 2009 infection in latest 3 months or novel influenza H1N1 2009 vaccination. This is a randomized study in healthy males and non-pregnant females, aged 20 years and older. All subjects will be stratified into 1 dose group (15mcg per dose), and will receive intramuscular influenza H1N1 vaccine. The H1N1 vaccine will be administered at Day 0 and Day 21. On Day 0, Day 10, Day 21, Day 28, Day 35 and Day 42 after first vaccination (Day 0), the immunogenicity testing will be manipulated. The antibody response of immunogenicity testing will be hemagglutination inhibiting (HAI) on serum. The T-cell response will be interferon-gamma ELISPOT assay and Tetramer staining using PBMCs.

Hospital-acquired influenza is associated with significant morbidity and mortality in hospitalized patients notably elderly patients. Furthermore, it is also associated with a large economic impact for the hospitals. The transmission of influenza has been mostly reported in pediatric and long-stay units. The chains of transmission of influenza in acute-stay units have to be describe in order to prevent and control potential outbreaks. Furthermore, to know clinical symptoms seems to be important in order to identify potential sources of virus as soon as possible and to set up appropriate hygiene prevention measures. Moreover, the definition of the hospital-acquired influenza has to be harmonized for all over the studies, especially concerning the delay between the admission in the hospital and the symptoms onset. The aim of this study is to describe the hospital-acquired influenza in a french university hospital of around 800 beds

The investigators decided to conduct a longitudinal study that compares the pulmonary tomographic patterns found in patients with viral pneumonia (i.e. influenza H1N1 and SARS-CoV-2) at a regional hospital. The primary aim of this study is to compare the radiological patterns found in patients with COVID-19 and influenza H1N1. The secondary aims of this study will assess the association between the radiological CT pattern and the need for invasive mechanical ventilation and mortality within the first 28 days of intensive care unit admission.

The primary objective of this study is to characterize the antibody response to seasonal influenza vaccine, in patients with active RRMS, treated with cladribine, compared to control individuals with basic immunomodulatory treatment. Serum antibody titers against the respective pathogen will be assessed prior to and 6 to 8 months following vaccination.

Influenza is a potentially lethal disease still responsible for thousands excess deaths both in Europe and the United States. Despite the use of neuraminidase inhibitors, its treatment is mostly based on symptomatic care. Lung microbiota has been shown to be involved in the immunity against influenza and is correlated with lung inflammation in numerous chronic respiratory diseases. We therefore aim to analyse the correlation between lung bacteriobiota and influenza ICU mortality

Seasonal influenza outbreaks contribute to the saturation of emergency services. Better knowledge of the epidemiology and clinical presentation of this pathology would optimize the organization of emergency reception services and provide better care for patients, disseminate educational elements to the population more appropriate as well as optimal recommendations for health professionals.

Prospective clinical study on the performance of an Influenza A+B rapid test kit. The main goal is to establish the sensitivity and specificity (i.e. how accurate the test is) when compared to a gold standard. Option of participating in this clinical study will be presented to patients displaying influenza-like illness. Informed consent will be collected from patients or patient's next of kin/guardian before samples (nasopharyngeal swab) are taken from the patient. Nasopharyngeal swabs are tested using both the investigational test kit and a predicate fluorescence immunoassay test kit. All samples will be tested using a molecular-based PCR test kit as a confirmatory test. The results will be analysed statistically and the performance of the Influenza A+B test kit can be evaluated.

Secondary bacterial influenza pneumonia caused by Panton-Valentine Leukocidin Positive Staphylococcus aureus is a rare complication but with poor prognosis. This pathology seems to affect young patients (20-40 years) without any medical history. Since the influenza pandemic of 2009, this complication is more and more mentioned, sought and diagnosed. However, the literature is poor, consisting of case reports, experimental studies on murine models, and low-power studies. The main objective is to evaluate the mortality in intensive care units of patients post-influenza bacterial pneumonia due to a Panton-Valentine Leukocidin positive Staphylococcus aureus

The occurence of influenza can be a factor of imbalance of asthma. Asthma patients are recommended for annual influenza vaccination . However there is insufficient vaccination coverage of asthmatic patients despite this recommendation. The aim of this study is to evaluate the rate of influenza vaccination coverage of children with asthma aged from 6 month to 17 years of age followed in pediatric pneumology consultation at the university hospital of Nancy.

This is a prospective specimen collection study targeting patients presenting with Influenza Like Illness (ILI) and/or Acute Respiratory Infection (ARI) in an out-patient setting. A non-invasive, user friendly sampling technique, using midturbinate flocked swabs will be used. These nasal swabs will be collected in different volumes of viral transport media (0.5mL and 3.0mL), for different dilution range of the viruses present in the collected biological specimen. The collection of nasal swabs samples will support the optimization of point of care detection methods for respiratory viruses responsible for ILI and/or ARI.