Active clinical trials for "Influenza, Human"

This study is to evaluate the safety, tolerability and immune response when 13-valent pneumococcal conjugate vaccine (13vPnC) and the trivalent inactivated flu vaccine (TIV) are given together to healthy adults aged 50-59 years who are naive to 23-valent pneumococcal polysaccharide vaccine (23vPS), or when the vaccines are given 1 month apart. It will also evaluate the immune response to 13vPnC once per year for 4 years and then to a second dose of 13vPnC given 5 years after the first dose.

This is a Phase I/IIa randomized, double-blind, placebo-controlled study to evaluate the safety, reactogenicity, and immunogenicity of 3 potencies (dosages) of H5N1 VLP vaccine or placebo in healthy adults 18 to 40 years of age.

The protocol is designed to demonstrate the safety of influenza vaccine GSK1247446A after revaccination.

The purpose of this study was to evaluate a single dose of FluBlok in terms of safety, efficacy and effectiveness in prevention of influenza and influenza-like illness and assess clinical lot-to-lot consistency in manufacturing by evaluating and comparing the immunogenicity of three different lots of FluBlok in a subset of participants.

A single center, randomized and double-blind phase II clinical trial is to be conducted in adults to evaluate the safety and immunogenicity of an inactivated pandemic influenza vaccine (whole-virion, aluminium-adjuvanted).

A controlled, double blinded study to determine the safety and reactogenicity in healthy adults of a single dose of a trivalent cell-derived influenza vaccine administered by intramuscular injection.

The purpose of this research study is to determine whether prior exposure to A/H2N2 viruses is associated with better antibody (part of the immune system that fights infection) responses after vaccination with an A/H9N2 flu vaccine. The study will evaluate how much antibody is made to the influenza virus after H9N2 flu vaccination and how the body reacts to different strengths of the H9N2 flu vaccine. This information may guide vaccine development for this virus as well as other bird flu viruses that have infected humans. Study participants will include 120 healthy subjects, age 18-38 or 44-59 years. Two different dosages of vaccine will be given in the muscle of the upper arm about 1 month apart. The assignment of vaccines to participants is governed by chance. Study procedures may include medical history, physical exam, and blood samples. Study participation duration is about 7 months.

The purpose of this study is to evaluate the safety, reactogenicity and immunogenicity of 2 formulations of a non-typable Haemophilus influenzae and pneumococcal candidate vaccine in young adults. Subjects will be vaccinated 2 times in an observer-blind manner with an interval of 2 months. The subjects receiving Engerix-B will receive in an open-manner a third dose of the vaccine at Month 6. The protocol posting has been updated following a protocol amendment.

Primary Objective: To describe the immune response to a single administration of 2 formulations of the investigational cell-based influenza vaccines in healthy adult subjects. Secondary Objective: To describe the safety following a single administration of 2 formulations of the investigational cell-based influenza vaccines in healthy adult subjects.

This work aims to measure the effectiveness of face mask worn by a patient with flu to avoid transmission to other persons in the household.