View clinical trials related to Vaccine Refusal.
Filter by:Vaccines currently prevent several million deaths every year and more lives could be saved if vaccination take up increased. The World Health Organization identifies vaccine hesitancy as one of the ten most important threats to global health and emphasizes the importance of devising interventions to reduce vaccine hesitancy. The two most promising interventions rely on consensus messaging, which has robust but small effects, and interactive discussion, which has larger effects, but is difficult to scale up. School-based interventions aimed at adolescents have the potential to make the best of both types of interventions. Interventions that take place in schools can be conducted over longer periods of time (up to several hours) and are rolled out by a figure that is typically trusted and respected (the teacher). Moreover, intervening during adolescence is particularly timely since important vaccines are delivered at that age (most notably the human papillomavirus vaccine), and because attitudes towards vaccination during adolescence might have a long-lasting impact, as is the case for other health related attitudes. This study tests the effectiveness of two interventions, a pedagogical intervention based on consensus messaging, and a chatbot intervention designed to mimic interactive discussion, on 9th grade French pupils.
While COVID-19 vaccine uptake has generally been high in Canada, with 83.4% of the total population having received the first two doses (i.e., primary series), additional "booster" uptake has been slower, especially among young adults aged 18-39. Throughout the pandemic, young adults have experienced less personal risk from COVID-19 infection and this has led to lower motivation to vaccinate when it is recommended. Achieving high rates of up-to-date vaccine coverage is important in this group to anticipate new variants and waves of infection and changes to recommendations which might include annual or seasonal vaccination. Three video interventions, intended to motivate Canadian young adults to adopt positive intentions toward continued COVID-19 vaccination, will be developed and tested: an informational comparison video, an altruistic video, and an individualistic video. Participants will be 3300 Canadian younger adults who will be randomly assigned to watch these videos. The first arm will only receive the informational video, the second arm the informational and altruistic videos, and the third arm the informational, altruistic, and individualistic videos. All participants will complete a brief online survey before and after viewing the assigned video(s). The goal of the study is to examine the efficacy of altruistic and individualistic messages, beyond informational messages, in increasing intentions for COVID-19 vaccination in this age group.
The investigators will recruit a national sample of parents of 7-10-year-olds to complete an argument strength ranking for either a simple forwarding message or between 3 and 6 randomly selected arguments from an overall set of 50 to 100 messages identified from various online sources. Parents will rate each message they see on measures of perceived argument strength/PME. Parents will also answer sociodemographic questions and then rank the believability of a set of anti-vaccine messages identified in a different study. Study findings will contribute valuable information to understanding the effectiveness of different inoculation messages.
The goal of this clinical trial is to test the effect of telehealth service provided to pregnant women about childhood vaccines on vaccine attitudes and vaccination. The main questions it aims to answer are: - Does telehealth service provided to pregnant women about childhood vaccines decrease the mean scores of the vaccine attitudes scale? - Does telehealth service provided to pregnant women about childhood vaccines increase the vaccination? In the intervention group, researchers will send educational materials (video and e-brochures) about childhood vaccinations to the participants' mobile phones at regular intervals, answer their questions over the phone and send reminder messages before the vaccination appointment. In the control group, there will be no information or intervention about childhood vaccines by the researchers, and standard procedure will be followed. Researchers will compare the intervention and control groups to see if there is a difference between vaccination attitudes and vaccination rates.
The elderly population and individuals with chronic diseases are at high risk for influenza and influenza-related pneumonia, and it is emphasized that taking pneumonia and influenza vaccine together is effective in reducing mortality as well as hospitalization rates and costs due to pneumonia, influenza, and congestive heart disease. This study that will be carried out will enable to determine the population-based prevalence of the relevant vaccines in the elderly and to determine the determinants of vaccination with the case group to be determined based on this. The aim of the study is two phases. 1. Determination of the prevalence of seasonal influenza and pneumococcal vaccination in elderly people over the over the age of 65 living in Ankara. 2. Investigation of socioeconomic characteristics and vaccine indecision and some health-related determinants of vaccination through the case group created based on the preliminary study on the prevalence of seasonal influenza and pneumococcal vaccination in the elderly over the age of 65 living in Ankara. The study, which includes cross-sectional prevalence and retrospective case-control stages, is planned to be carried out with individuals over the age of 65 living in Ankara province between November 1 and December 31, 2022.
The success of vaccination programs often depends on the effectiveness of the vaccine messages, particularly during emergencies such as the COVID-19 pandemic. The current suboptimal uptake of COVID-19 vaccines across many parts of the world highlights the tremendous challenges in overcoming vaccine hesitancy and refusal even in the context of a world-devastating pandemic. The investigators conducted a randomized controlled trial in Hong Kong to evaluate the impact of seven vaccine messages on COVID-19 vaccine uptake (with the government slogan as the control). The participants included 127,000 individuals who googled COVID-19-related information during July-October 2021.
This is a randomised controlled experiment in the form of a web based survey study which randomly exposes participants to different forms of public health messages, after which participants will be assessed on their intent to take up the COVID-19 vaccine, recommend the vaccine, and also willingness to propagate the exposed message.
With the constant threat of new epidemic waves and the emergence of variants, COVID-19 resilience can only be attained when a sufficient level of immunity is achieved. Yet, in the US and the UK, COVID-19 vaccination campaigns have failed to secure consistent vaccination acceptance in racial/ethnic minority communities. Despite racial/ethnic minorities being more at risk from COVID-19, they are less vaccinated than the White majority. The investigators propose that current vaccination invitation messages are deemed less trustworthy by racial/ethnic minorities than the White majority and that this might partly explain reduced vaccination acceptance. To provide causal evidence of the role of trust and actionable insights, the investigators will experimentally assess the benefits of new invitation messages to receive the COVID-19 booster dose in large, racially/ethnically diverse samples in the US and the UK. Results will evidence how to increase message and source trustworthiness to foster trust and vaccination acceptance across racial/ethnic groups.
Oklahoma has high COVID-19 incidence, particularly among underserved minority and rural Oklahomans. Oklahoman's are also reporting SARS-CoV-2 vaccine hesitancy and signs of slowing vaccine uptake, with increased hesitancy among American Indian and rural populations. The project aims to work with ongoing community testing events to implement interventions to improve vaccine uptake among Oklahoma's underserved populations.
The United States (U.S.) is the country with the largest number of infections and deaths due to COVID- 19 and racial/ethnic minorities are disproportionately affected. Acceptance and uptake of COVID-19 vaccines will be instrumental to ending the pandemic. To this end, 2VIDA! (SARS-CoV-2 Vaccine Intervention Delivery for Adults in Southern California) is a multilevel intervention to address individual, social, and contextual factors related to access to, and acceptance of, the COVID-19 vaccine by implementing and assessing a COVID-19 vaccination protocol among Latino and African American (AA) adults (>18 years old) in San Diego. 2VIDA! builds on our previous CBPR efforts and centers on conducting COVID-19 Individual awareness and education, linkages to medical and supportive services, and Community Outreach and Health Promotion in the intervention sites (Phase 1); and offering the COVID-19 vaccine to Latino and AA adults (>18 years old) in federally-qualified health centers and pop-up vaccination stations in communities highly impacted by the pandemic and identifying individual and structural barriers to COVID-19 immunization (Phase 2).