Active clinical trials for "Influenza, Human"

This study compares the epidemiology and clinical outcomes of laboratory confirmed influenza type A to type B following clinical diagnosis of influenza. Multivariate models are used to assess the effects of influenza type on clinical outcomes while accounting for potential confounders.

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.

This study aims to quantify the inpatient and ER visits burden of laboratory-confirmed influenza, and compare the clinical features, severity, complications, risk factors and socioeconomic impact of influenza in children presenting with acute respiratory illness (ARI) and/or isolated fever, with or without laboratory-confirmed influenza.

This is a randomized, single-blinded, Phase IV, monocentric study in healthy adults aged > 18 and < 60 years to evaluate the cellular and humoral immunogenicity as well as the reactogenicity of intramuscular, inactivated, trivalent influenza vaccines, including aluminium adjuvanted whole virus vaccine, split vaccine and subunit vaccine.

Influenza virus infections are a major cause of morbidity and mortality. The limited existing knowledge about the impact of influenza in immunocompromised patients suggests that they are at increased risk of influenza virus acquisition, of developing complications and of prolonged illness and viral shedding. However, some other data about the effect of antiviral agents on the infection course, and risk of resistance in immunocompromised children are lacking. The emergence of the pandemic H1N1 swine-origin influenza A virus has generated an additional need to study the epidemiology, clinical course and outcome of influenza infections in immunocompromised children. This study proposed to conduct a prospective observational clinical study to answer these questions.

The purpose of this study is to determine the efficacy of influenza vaccine (antibody response) in patients with sarcoidosis.

The purpose of this observational study, which will be initiated as soon as the licensed H1N1 Pandemic Influenza Vaccine is used in a mass vaccination campaign, is to estimate the incidence of any medically-attended adverse events in all vaccinated subjects.

The incidence of severe morbidity and mortality following an influenza infection during the annual influenza epidemics is highest among the elderly population and 90% of influenzaassociated mortality occurs in this group. Vaccination is considered the best preventive intervention available but offers only partial protection. The protective effect decreases with advancing age and existing co-morbidity. Therefore, in spite of high compliance with vaccination, the risk of influenza-related complications among nursing-home residents, is particularly high, and consequently also the associated disease and economic burden. There is debate on the potential health benefit of the antiviral activity of oseltamivir as an effective supplementary intervention to prevent or contain influenza outbreaks in nursing homes. Although effectiveness of post-exposure prophylaxis (PEP) with oseltamivir on preventing transmission has been demonstrated in trials among healthy (mainly unvaccinated) adults and children, effectiveness has not yet been assessed among vulnerable vaccinated highrisk groups, such as the elderly population in nursing homes. If proven (cost)effective, oseltamivir could have considerable benefits in this setting, although constraints relating to implementation need to be addressed as well.

A prospective, open-label, interventional phase IV study to assess the safety of EupentaTM Inj.{fully liquid pentavalent vaccine, Adsorbed Diphtheria-Tetanus-whole-cell Pertussis-Hepatitis B (rDNA [recombinant-deoxyribonucleic acid])-Haemophilus influenzae type b conjugate vaccine}

Prospective cohort study to evaluate safety and immunogenicity of the fragmented, inactivated trivalent Influenza vaccine produced at Butantan Institute in healthy adults and elderly. The study will include a total of 120 participants: 60 participants aged 18 to 59 years in the healthy adults group, and 60 participants aged older than 60 years in the elderly group.This study will evaluate the safety of one dose of the fragmented, inactivated trivalent Influenza vaccine in the first 3 days after vaccination, as well as its immunogenicity 21 days after vaccination.