Active clinical trials for "Influenza, Human"

Influenza is a major cause of morbidity and mortality. The investigators first goal is to evaluate soluble HLA-G5 isoform serum level as a potential marker of greater risk of death from Influenza respiratory illness in adult and pediatric patients hospitalized in reanimation. Secondly, the investigators collected respiratory samples in order to study the transcriptomic profiles of influenza-infected patients with severe symptoms.

This study is designed to assess whether a live attenuated Influenza vaccine (LAIV) can induce a long-lasting immune memory by comparing the immunologic response to two doses of the OrniFlu® inactivated vaccine given to subjects previously primed with LAIV and subjects who did not received LAIV.

Silent atrial fibrillation is an important cause of unnecessary strokes. If diagnosed and treated in time with anticoagulants, many disabling strokes can be prevented. In order to improve the diagnosis of atrial fibrillation the MyDiagnostick is developed; a user friendly and easy to use stick that diagnoses atrial fibrillation in one minute. During influenza vaccination, many patients who are also at risk for atrial fibrillation visit the general practice. This offers an ideal opportunity for screening for atrial fibrillation. The study investigates the yield of screening for atrial fibrillation with the MyDiagnostick during influenza vaccination (newly detected atrial fibrillation with corresponding CHA2DS2-Vasc score).

There is uncertainty about whether a live attenuated vaccine (LAIV) offers additional benefit over inactivated trivalent influenza vaccine (TIV) in providing indirect benefit to those who are unvaccinated through herd immunity. The goal of this randomized clinical trial is to determine whether immunizing children in Hutterite colonies with LAIV can provide increased community-wide protection over TIV. Children aged 3 to 15 years in Hutterite colonies from Alberta and Saskatchewan will be randomized to one of two regimens: TIV or LAIV. The primary outcome of this study will be laboratory-confirmed influenza as detected by PCR in all participants (i.e vaccine recipients and nonrecipients). Secondary outcomes will include influenza-like illness, hospitalization, pneumonia, death, antibiotic use, absenteeism.

The goal of this randomized clinical trial is to determine whether immunizing children in Hutterite colonies with inactivated influenza vaccine can prevent influenza and its complications in other colony members. Furthermore, the study will assess the indirect benefit to Hutterites at high risk of complications. The study is a blinded, cluster randomized controlled trial among Hutterite colonies to test the hypothesis that high immunization rates (>70%) of healthy children with inactivated influenza vaccine reduces transmission of influenza to other colony members. Randomization of these homogeneous, moderately sized colonies where there is regular spread facilitated by a communal lifestyle, but limited re-introduction because of relative isolation from outside community, represents a unique opportunity to test the hypothesis of indirect benefit under close to ideal conditions. The primary outcome will be laboratory-confirmed influenza. Secondary outcomes include influenza-like illness, otitis media, physician visits, antimicrobial prescriptions, absenteeism, lower respiratory tract infection, hospitalizations, and death.

This randomized trial compared the immunogenicity of 60% dose intradermal (ID) influenza vaccination to standard intramuscular (IM) vaccination of full-dose or 60% dose vaccine. Pre- and postvaccination measurements in the hemagglutination inhibition antibody (HAI) titer were compared. Participants who received reduced-dose vaccine were revaccinated with full-dose IM vaccine.

Annual trial for registration of sub-unit influenza vaccine produced in mammalian cell culture, using the strain composition 2007/2008, when administered to adult and elderly subjects

The purpose of this study is to determine whether influenza vaccination protects patients who receive a certain type of bone marrow transplantation.

To submit remaining available sera to Center for Biologics Evaluation and Research (CBER) for further analysis by the Food and Drug Administration (FDA), the Center for Disease Control and Prevention (CDC) and the World Health Organization (WHO) to support selection and recommendation of antigen strains for subsequent influenza vaccines.

We will be testing the hypothesis whether online education for UC Berkeley students on respiratory hygiene, cough etiquette, hand hygiene/awareness, as well as face mask use (while ill) will reduce the acquisition and transmission of influenza-like illness. The study will be conducted during the flu seasons 2006-7 and 2007-8.