View clinical trials related to Dengue.
Filter by:This study will assess the effect of an educational nursing intervention in adults to promote dengue control and prevention behaviors, in comparison with the usual strategy of a health service provider institution. The intervention uses the Nola Pender Health Promotion Model as a theoretical framework. Findings will be assessed using the nursing outcomes "risk control" and "participation in health care decisions" from the Nursing Outcomes Classification (NOC).
Dengue can be mitigated by both vector control and vaccination. Serious games in healthcare can be used to raise the community awareness of vector control in dengue prevention in a simulated interactive learning environment, by motivating serious game participants to optimise their own performance and influence their behaviour. The results show a specially designed serious game can better engage local residents by raising their awareness in vector control and proactiveness in dengue prevention. At least 8 out of 10 participants were willing to be vaccinated against dengue if they knew of the availability of a safe and effective vaccine.
The purpose of this research study is to test a weakened form of an experimental dengue virus challenge at different doses to test if participants develop symptoms or circulating virus in the blood (called viremia). When volunteers are exposed to dengue on purpose, it is called a "challenge" or Dengue Human Infection Model (DHIM). The research team is collecting information about the safety of the challenge and the best dose to use. The information may help us to make a dengue challenge (a DHIM) that will test vaccines to protect people from dengue.
The primary objective is to determine, among dengue-naïve adults in an endemic population, the protective efficacy of TetraVax-DV TV005 vaccine against dengue infection induced by a live recombinant attenuated rDEN2∆30-7169 attenuated virus strain administered 6, 12, or 24 months after vaccination. Secondary objectives are: 1. Determine the durability of protection of TetraVax-DV TV005. 2. Evaluate the safety of TetraVax-DV TV005 in dengue-naïve volunteers in a dengue endemic population. 3. Evaluate the safety of the rDEN2∆30-7169 attenuated virus strain in a dengue endemic population.
In 2021-2022, Agence Sanitaire et Sociale Nouvelle Calédonie (ASSNC) is undertaking the "Baromètre Santé Adulte" for the third time. This study is carried out this year in collaboration with WHO and Institut Pasteur de Nouvelle Calédonie (IPNC). The main objective of this investigation is to describe the current levels of chronic disease risk factors in the adult population of New Caledonia aged from 18 to 64 years old. This study will also help to estimate prevalence of certain diseases (diabetes, hypercholesterolemia, renal failure), seroprevalence of arboviruses (dengue fever, Zika, chikungunya and Ross River) malaria as well as the seroprevalence of SARS-CoV-2. Repeated regularly, these surveys allow the ASS-NC to capitalize on population indicators, to compare them according to socio-demographic characteristics, to identify groups at risk, to provide changes in health behaviors and to strengthen analytical capacities in order to adapt the guidelines for public policies and prevention programs.
Among all arboviruses, Dengue (DEN) is the vector borne disease with the highest burden worldwide. Around 390 million infections per year are estimated, of which around 96 million are clinically apparent. Since its re-emergence in 1998 in Argentina, DEN has shown an epidemic behavior affecting mainly the northern and central regions in which the circulation of serotypes has been heterogeneous. The last significant outbreak was registered between the end of 2019 and the beginning of 2020.. Vaccine development for DEN prevention has been a long and challenging journey. The only vaccine that has reached registration to date is a recombinant attenuated tetravalent vaccine (Dengvaxia, Sanofi Pasteur) showing an efficacy against virological confirmed DEN infection of 36.6% (4.2-61.4) in seronegative subjects at baseline and 77.9% (65.1-86.0) in seropositive. However, this vaccine has not been pre qualified by the World Health Organization. New dengue vaccines are in advanced stages of development worldwide. At least three vaccines are in advanced stages of development including one produced by Takeda, the Butantan Institute and the Merck, Sharp & Dohme development. The implementation of a vaccination strategy in Argentina could be a health-relevant approach. However, the best way to implement this requires prior information describing and investigating numerous aspects of vaccination including acceptability. A systematic review of two acceptability surveys showed an acceptability of 77% to 86% but in countries with endemic DEN at time of the surveys. It is possible that in Argentina, the introduction to the regular calendar, for use in specific regions with a high and periodic burden of disease, of highly effective and safe DEN vaccines will be considered. However, to our knowledge, we do not have available evidence of the potential acceptability of these vaccines. The main objectives of this research will be: To evaluate the acceptability of a DEN vaccine in potential target populations in regions of high burden of disease in Argentina. Describe main determinants of and barriers to DEN vaccine acceptability in regions of high burden of disease in Argentina. Identify information and intervention needs to design and implement communication strategies that have a positive impact on the acceptability of a DEN vaccine.
The purpose of this study is to evaluate the prophylactic effect of JNJ-64281802 with respect to the prevention of laboratory-confirmed dengue virus (DENV) infection up to the last day of dosing among participants who have no evidence of current DENV infection at baseline.
The Pacific region is facing several emerging and neglected diseases notably mosquito-borne diseases as malaria or arboviroses among which dengue, Ross River, chikungunya and Zika. These diseases are an important cause of illness and death in the Pacific and the occurrence of arboviruses has increased in the recent years. In humans, these mosquito-borne diseases often have very similar clinical presentations (an acute febrile syndrome often self-limiting). However, these infections can progress to severe and fatal prognosis. Numerous arboviroses outbreaks and in particular dengue outbreaks have affected Vanuatu for decades. Except for DENV and Zika for which epidemiological and virological data are available for Vanuatu, the knowledge on chikungunya and Ross River circulation is very limited and needs to be defined as both viruses have intensively circulated in the region in the past. Knowledge of the level of immune protection of the population for these mosquito-borne diseases is incomplete. For this purpose, seroprevalence studies that intend to retrospectively look for antibodies (IgG) as an evidence of previous infections by a specific pathogen would be highly informative. Knowing the serological profile of the Vanuatu population for dengue and other arboviruses as Ross River, chikungunya and Zika that could have affected the country in the past would be useful in defining the population likely to be infected by future epidemics. COVID-19 pandemic caused by SARS-CoV-2 as caused over 520 million cases since December 2019. Vanuatu has been relatively spared from the pandemic due to the establishment of a sanitary sas involving strict border control. On 04 March 2022, an active COVID-19 case was confirmed at Vila Central Hospital who had no travel history, indicating transmission at community level. Overall, a total of 8487 confirmed cases have been reported since the beginning of 2022. Local vaccination campaign was initiated in July 2021. A seroprevalence study documenting population immunity to COVID-19 will inform of the breadth of COVID-19 epidemic in Vanuatu, contributing to the evaluation of undetected infections rate. This identification of vulnerable populations will inform local public Health strategies, including targeted vaccination campaigns.
This trial aims to validate a novel clinical care strategy based on a electronic clinical decision support algorithm (CDSA) combined with point of care rapid diagnostic tests by evaluating its impact on antibiotic prescription and clinical outcome of children and adolescent presenting at primary healthcare facilities with non-severe acute illness compared to routine practice. The trial also aims to assess the usability of the CDSA strategy. The study will be conducted in primary healthcare facilities across different epidemiological regions of Senegal.
The investigational study drug, JNJ-64281802, is being developed for the prevention and treatment of dengue infection. This study is hypothesizing that the highest dose of the investigational study drug is superior to receiving a placebo with respect to its antiviral activity in healthy adult participants inoculated with Dengue Serotype 3.