View clinical trials related to Influenza, Human.
Filter by:This study explores the hypothesis that the use of an adjuvanted influenza vaccine in the elderly will produce greater vaccine effectiveness in their group.
The purpose of this study is to develop a real-time diagnostic technique with e- Ab sensor for influenza virus detection, the investigators conduct a prospective clinical study. In comparison with results from direct sequencing of influenza virus, the investigators evaluate the performance of e- Ab sensor, including reproducibility, sensitivity, specificity, and cross-reaction. The potential factors which may interfere with the results would be investigated. With such technique, the investigators hope to make early diagnosis and give influenza virus patients early treatment to reduce the complications and case-fatality rate.
Background: - The Laboratory of Infectious Diseases (LID) Clinical Studies Unit (CSU) enrolls healthy volunteers into clinical studies to study infectious diseases. - Viruses can be highly infectious and contagious. They cause considerable illness in the United States each year and a good example of this is influenza (the flu). The LID CSU performs clinical studies to learn about these viral infections and assist in the development of vaccines and treatments for the infections. These clinical studies include influenza "challenge studies" as well as natural history studies and phase I trials involving vaccines for viruses carried by mosquitos such as Zika or Dengue virus. - In influenza challenge studies studies, doctors expose a person to a flu virus. Then they study the flu through the body's natural healing process. This information will help to find better ways to prevent the flu and may also improve treatments for the flu. - Natural history studies and phase I trials of new vaccines are performed so the researchers can learn how some viral infections occur and if new vaccines are safe and potentially effective in preventing the infections. In some of these studies, participants experience insect bites with special clean (non-infected) insects (such as mosquitos) to better understand the role of insects in these infections. Objectives: - To screen healthy volunteers for future CSU studies. Eligibility: - Healthy people between the ages of 18 and 65 Design: - The 3- to 5-hour screening exam includes the following: - Medical history and physical exam - Standard blood tests including pregnancy, Hepatitis B and C, and HIV tests - Standard urine drug testing - Electrocardiogram (ECG) to test heart rhythm and function - Chest x-ray - Eligible volunteers are enrolled in the study for up to 1 year, until they take part in a CSU study or are found to be ineligible to participate. - Volunteers may withdraw from the study pool at any time.
To determine if prophylactic supplementation with B. lactis HN019 reduces the risk of developing physician- and laboratory-confirmed influenza infection at any time during the 12-week supplementation period.
Experimental and clinical studies in adults have reported that green tea catechins prevent influenza infection. In this clinical randomized study, the investigators aimed to determine the effects of gargling with green tea on the prophylaxis of influenza infection among high school teenagers.
During the 2010-2011 and the 2011-2012 seasonal influenza immunization campaigns, we will recruit a minimum of 46 healthcare organizations to either conduct their campaigns as usual or to use the "Successful Influenza Immunization Campaigns for Healthcare Personnel: A Guide for Campaign Planners and a web-based grab-and-go Tool Kit. At the end of the campaign season we will evaluate the impact of the Guide and web-based tools and assess whether there were changes in immunization rates within each organization and/or if there were significant changes in the management of the campaigns across organizations. Following completion of the study, we will work with partner organizations to make these tools available to all Canadian healthcare organizations.
Following the sudden and unexpected emergence of influenza A(H1N1)pdm09 (2009 H1N1) virus, this observational study was initiated to estimate rates of morbidity and mortality and to examine predictors of severity among participants with 2009 H1N1 infection. In 2011, as surveillance indicated that 2009 H1N1 virus was co-circulating with other seasonal influenza A and B viruses worldwide, the protocol was expanded to include other influenza A subtypes and influenza B viruses. The current version of the protocol (released in August 2013) further broadens the scope of this observational study. With the recognition that novel respiratory viruses other than novel influenza A viruses, e.g., Middle East Respiratory Syndrome Coronavirus (MERS-CoV), could become prevalent and of major public health importance, the objectives of this protocol have been expanded.
The aim of this study is to evaluate the effectiveness and safety of Chinese herbal medicines for severe pandemic H1N1 influenza.
The purpose of this study is to generate data on immunogenicity and safety of the monovalent H1N1 vaccine in support of the development and registration.
Stem cell and and heart transplant patients will receive pandemic H1N1 influenza vaccination according to the clinical guidelines. In these patients the investigators will measure the specific antibody production.