Active clinical trials for "Influenza, Human"

Randomized controlled trial of influenza vaccination versus referral for vaccination in the Emergency department. Is the Emergency Department an effective venue for vaccination for influenza? Does vaccination for influenza in the Emergency Department change the rates of influenza, influenza-like-illness or medical provider visits when compared with patient referred for vaccination in the community?

Influenza disease causes significant morbidity and mortality in the Unites States each year. Although influenza can cause morbidity in otherwise healthy individuals, adults with chronic lung disease have significantly increased rates of hospitalization from influenza-related illnesses compared to healthy adults. Influenza vaccination is the primary means of preventing influenza disease. Annual influenza vaccination is recommended for all individuals 6 months of age and older in the United States. Influenza vaccination rates are sub-optimal, however. Patient reminder/recall has been shown, in multiple studies across a variety of age groups and health conditions, to increase immunization rates. However, the effectiveness and cost-effectiveness of different types of reminder/recall has not been well-studied, particularly in adults. In the fall of 2012, the Population and Prevention Services (PPS) Department at Kaiser Permanente Colorado (KPCO) is using 3 different reminder strategies for influenza vaccination among adults with asthma and chronic obstructive pulmonary disease (COPD). The objective of this study is to provide a rigorous evaluation of which strategy is more effective and more cost-effective, to promote influenza vaccination.

The ways in which influenza is transmitted between people are uncertain; for example, we do not know if large droplets or fine particles (aerosols) matter most; both are produced by coughing and sneezing. This means we cannot say what precautions work best in real life. Improving our understanding is vital to allow the development of guidelines and policies to help reduce the transmission of both pandemic and seasonal flu. The aim of this study is to explore how influenza is spread, specifically by looking at the importance of spread via small particles (aerosols/droplet nuclei) that are carried in respiratory sprays e.g. produced by coughing and sneezing. The primary objective of this study is: To estimate the contribution of aerosols/droplet nuclei to influenza transmission by determining the secondary attack rate (SAR) of influenza in Recipients randomised to a control arm (no intervention - allowing all modes of transmission) compared to Recipients randomised to an intervention arm (face shield and hand hygiene - allowing only transmission by aerosols/droplet nuclei) when both groups of Recipients are exposed to Donor volunteers infected with influenza via intranasal drops. The hypothesis is that: The SAR will be lower in Recipients exposed only to aerosols/droplet nuclei (intervention arm) compared to those exposed to all modes of transmission (the control arm): aerosols/droplet nuclei, droplet spray (larger respiratory droplets) and transmission through contact.

Prospective, open-labelled study which will enrol 360 participants in four groups of 80 participants including: HIV-uninfected adults without evidence of TB; HIV-infected adults without any evidence of TB; HIV-uninfected adults with concurrent microbiologic confirmed TB, HIV-infected adults with concurrent microbiologic confirmed TB. Participants will receive the recommended seasonal 2013 un-adjuvanted Trivalent Influenza Vaccine (TIV). At 3 visits, blood will be collected for determination of immune responses. Objective: • To determine the effect of HIV-infection, tuberculosis (TB) and HIV-TB co-infection on immune responses

The goal of this research study is to improve rates of appropriate influenza and pneumococcal vaccination among adults who receive care at a large multi-specialty group practice in central Massachusetts. The investigators plan to conduct a non-blinded randomized controlled trial during flu season 2014-2015 (Cycle 1). A total of 20,000 e-portal users and 10,000 non e-portal users who are identified in the Reliant Medical Group (RMG) Electronic Health Record (EHR) as not being up to date on their influenza vaccines will be randomized. E-portal users will be randomized to receive: Arm 1: E-portal message with Interactive Voice Recognition (IVR) call Arm 2: E-portal message with no IVR call Arm 3: No e-portal message with IVR call OR Arm 4: No e-portal message with no IVR call (Control, e-portal users) Non e-portal users will be randomized to receive either: Arm 5: IVR call OR Arm 6: no IVR call (Control, non e-portal users)

The purpose of this study is to evaluate the immunologic equivalence of three consecutive lots of a cell based trivalent subunit influenza vaccine (TIVc), and to assess immunogenicity, safety and tolerability of the vaccine and an egg based trivalent subunit influenza vaccine (TIVf). The study comprised 1 vaccination, 2 clinic visits, 3 reminder calls and 2 blood draws. Female subjects of childbearing potential were tested for pregnancy before the administration of the vaccine and included only if using and agreeing to continue to use contraception during the course of the study. The total study participation time per subject is about 3 weeks.

The overall aim of this project is to evaluate the immunogenicity of TIV vaccination in HIV-infected non-pregnant women in 2013. Safety data including solicited local and systemic reactions to the vaccine will also be assessed.

This is a Phase I, randomized controlled trial to evaluate the safety of Lactobacillus rhamnosus GG (LGG) versus placebo in elderly subjects receiving the live attenuated influenza vaccine. Lactobacilli are part of the normal flora of the intestine. LGG is one of several strains of Lactobacilli that is used as a probiotic or microorganism administered to confer "health benefits". Our research is focused on studying the possible therapeutic effects of LGG. The study hypotheses are: LGG or placebo administered twice daily will be safe and well tolerated in elderly subjects who have just received the live attenuated influenza vaccine, The immune response to the influenza vaccine at day 21, 28, and 56 will be higher in the LGG group than the placebo group, The diversity of the microbiota in nasopharyngeal and stool specimens at day 21, 28, and 56 will be greater in the LGG group than the placebo group.

Objective 1: Determine the safety and toxicity profile of Tamiflu administered in combination with probenecid in healthy adults.Objective 2: Determine the pharmacokinetic profile of Tamiflu and probenecid in healthy adults.

The objective is to assess the safety of bivalent vaccine of two new 6:2 influenza virus reassortants in healthy adults prior to the release of the trivalent vaccine (FluMist) containing them.