View clinical trials related to Influenza Vaccine.
Filter by:Flu vaccination, as well as being effective to prevent seasonal influenza, decreases staff illness and absenteeism and reduces costs resulting from loss of productivity. Despite the effectiveness of flu vaccination, the seasonal coverage among healthcare workers is usually low. The aim of this retrospective observational study is to analyze the vaccination coverage rate among all employees (healthcare workers and administrative staff) of a large teaching hospital in Rome during the 2017-2018 influenza season, to perform a cost-consequence analysis of influenza vaccination (by evaluating the absenteeism due to illness in the epidemic period), and to assess the impact of vaccination in terms of both costs and sick days.
This is a randomized, double-blind, double-dummy, placebo-controlled Phase 1b study evaluating the safety and immunogenicity of the investigational Cam2020 M2SR H3N2 influenza vaccine delivered IN alone or concomitantly with inactivated influenza vaccine (IIV) delivered IM to a healthy adult population age 65 to 85 years at time of enrollment.
Randomized clinical trial to determine whether a probiotic formulation containing 4 probiotic strains which belong to Lactiplantibacillus plantarum and Pediococcus acidilactici species can boost the immune response to influenza vaccination evaluated at 4 weeks in a population between 50 and 80 years of age. Secondary outcomes comprise evaluation of immune response at 8 weeks after vaccination, percentage of patients with seroconversion, incidence and duration of influenza-like infections and respiratory infections throughout a 4-month period and safety.
This is a randomized, double-blind, placebo-controlled Phase 1b study to evaluate safety and immunogenicity of the investigational Sing2016 M2SR H3N2 influenza vaccine delivered intranasally to a healthy adult population age 50 to 85 years.
As part of the fight against COVID-19, the UK government has announced its most comprehensive flu campaign to date (https://www.gov.uk/government/news/most-comprehensive-flu-programme-in-uk-history-will-be-ro lled-out-this-winter). This should not be surpising: every year NHS hospitals experience an overwhelming number of influenza cases, and COVID-19 increases this concern. As in previous years, the flu vaccine is free at the point of care for people 65 and over. New this year is that later in the season the vaccine will be made available free at the point of care for people 50 and over. However, if people refuse to take the vaccine this comprehensive program cannot benefit public health. The degree to which vaccine hesitancy is expressed varies across characteristics of the vaccine considered and the time and place it is offered, and across characteristics of the person's perceptions of complacency, convenience, confidence, calculations, and communal responsibility, i.e. the "5Cs". Information campaigns can be used to influence all 5Cs, and public facing information is often a necessary component of public health campaigns that may also include structural components. Largely, information campaigns can be viewed as a type of educational intervention. Educational interventions may fall short of what is needed to alter people's intentions to vaccinate where they focus on system 1 rational thinking processes and neglect system 2 automatic thinking processes. To be more effective, public health messages must be tailored to align with the "beliefs, attitudes, and motivations" of the very people they intend to influence. Fact-led educational interventions to increase parents' intentions to vaccinate their children are particularly ineffective where more subtle content opposes the recipient's deep-seated values. In a different context, recycling behaviour, previous research demonstrated that messages aligned with people's deep-seated values (i.e. the moral foundations that underlie political ideologies) are more likely to promote desired behavioural intentions than unaligned messages. The present research expands the scope of previous research in two ways. First, rather than investigating parental attitudes towards vaccination, the investigators will look at people's intentions to self-vaccinate. Second, the investigators will explore the effectiveness of messages aligned with the moral foundations that underlie individual's political ideologies on their intentions to be vaccinated.
Influenza vaccine uptake remains low worldwide, inflicting substantial costs to public health and health systems. Messages promoting social welfare have been shown to increase vaccination intentions, and it has been recommended that health professionals communicate the socially beneficial aspects of vaccination. This study aims to provide the first test whether this prosocial vaccination hypothesis applies to the actual vaccination behaviour of high-risk patients by comparing the effects of two motivational messages for promoting vaccination at a tertiary care public hospital in Istanbul, Turkey.
In this open label, single centre, pilot randomized controlled clinical trial the investigators aim to compare the immunogenicity and safety of a new influenza vaccination strategy consisting in the topical administration of imiquimod at the injection site before vaccination vs. a standard intramuscular vaccine injection in SOT recipients and HIV-infected individuals. The investigators planned to enroll 70 outpatients patients (50% solid-organ transplant recipients and 50% HIV-infected patients) regularly followed at the Transplantation center and the Infectious disease outpatients' clinics of the Lausanne University Hospital. Study participants will be randomized in a 1:1:1 ratio to receive the standard intramuscular vaccine (control group) or a topical application of an imiquimod containing cream followed by intramuscular (imiquimod-IM) or intradermal (imiquimod-ID) vaccine injection. After vaccination participants will be followed for a period of 180 days. Blood samples will be drawn at baseline and at day 21 and 180 for assessment of immunogenicity. Safety outcomes will be assessed immediately after vaccine administration, and at day 7 (phone call), 21 and 180.
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.
Sarcoidosis is an inflammatory disease of unknown origin that can affect all organs, especially the lungs and mediastinum. Some location of sarcoidosis may require treatment with corticosteroids or immunosuppressors.Although seasonal influenza vaccination can be recommended in sarcoidosis in some subgroups at risk (respiratory failure, pulmonary fibrosis, age over 65, use of immunosuppressive therapy, etc ...), the investigators presently have no data on the efficacy and safety (absence of adverse reactions) of seasonal influenza vaccination in sarcoidosis.Especially it is not known whether the seasonal influenza vaccine provides the same rate and same type of vaccine response in sarcoidosis patients than in the general population. Similarly, it is unclear whether the vaccine response is modified by the severity of the disease and treatment with corticosteroids and immunosuppressors.Based on what is known in systemic lupus and rheumatoid arthritis, which are both inflammatory and autoimmune diseases, the investigators expect at best a 50% vaccine response in patients with sarcoidosis and a 85% vaccination response in healthy controls. The demonstration of a vaccine response could allow reconsidering new vaccine approaches in sarcoidosis.
Based on information from several years of looking at Influenza vaccination doctors know that: - Older adults suffer the worst illness and most deaths caused by Influenza illness of all age groups. - Older adults do not seem to get as good a level of protection as younger adults after getting the usual seasonal Influenza vaccine. Because of this information doctors wonder if one of the new seasonal Influenza vaccines is more effective or more acceptable. This study has been designed to answer some of these questions. On this study doctors will compare 2 new vaccines against the usual seasonal influenza vaccine for protectiveness using several different testing methods (including the usual tests) and for acceptability.