Active clinical trials for "Dengue"

Dengue virus is an arbovirus transmitted by mosquitoes which causes significant morbidity and mortality among children in tropical regions, especially in resource limited countries. The objective of this protocol is to compare the sensitivity and specificity of clinical gestalt and two rapid antigen tests for dengue virus and to compare the gene expression of leukocytes in distinct dengue fever disease phenotypes module-based RNA microarray technology.

The objective of this study is to test individual donor samples (IDSs) with the investigational Dengue Assay on the TIGRIS System and to further characterize the Dengue Assay in the clinical setting.

Since 2009, Kaohsiung Medical University Hospital organized a medical team to provide the medical service for people in Solomon Islands thru Taiwan Health Center at the local. In addition to Malaria and pulmonary tuberculosis, the investigators also found dengue virus, Japanese Encephalitis virus, Chikungunya virus infections and intestinal parasitic infections might be the existing but overlooked and neglected medical issues in Solomon Islands. These infections show similarity in clinical manifestations and usually difficulty in clinical diagnosis, instead these infections rely on the laboratory identification with good laboratory quality and facility.

Rural communities involved in agriculture are often at highest risk of insect-borne diseases in Southeast (SE) Asia. Skin-applied insect repellents may prove a useful means of reducing mosquito-borne diseases for those people working outdoors in high risk areas. This trial is evaluating the use of insect repellent (20% diethyltoluamide) to reduce incidence of malaria, Japanese Encephalitis and Dengue. The investigators will recruit up to 1000 households from 100 villages in rural Laos. In each house the investigators shall recruit up to 5 individuals. Half of households will be randomised to repellent, half to a placebo. All individuals will be provided with insecticide treated bed nets for use at night. All household occupants will be followed for 7 months to record malaria cases by Rapid Diagnostic Test every month. Blood spots will be collected at start and end of study to measure Japanese Encephalitis and Dengue. All positive cases will be promptly treated. Outcome will be reduction in number of malaria cases (primary outcome) and Dengue/Japanese Encephalitis (secondary outcomes).

Study setting: Medellin and Bello municipalities, Colombia Health condition(s) studied: Dengue, Zika and chikungunya virus infection Intervention: Deployment of Wolbachia-infected Aedes aegypti mosquitoes in Medellin and Bello. Study design: An interrupted time-series analysis utilising routine disease surveillance data collected by the Medellín and Bello Health Secretariats, which aims to compare incidence of dengue, chikungunya and Zika pre- and post-Wolbachia release. A test-negative study using an incident case-control design, which aims to quantify the reduction in disease incidence among people living within a Wolbachia-treated zone compared with an untreated zone that has a similar dengue risk profile at baseline.

The objective of this study is to test individual donor samples (IDSs) with the investigational Dengue Assay on the TIGRIS System and to further characterize the Dengue Assay in the clinical setting.

The purpose of the study is to screen blood donors for the presence of NS1 antigen of the dengue virus at the American Red Cross in Puerto Rico region (and Monroe County, Florida) using the Platelia Dengue NS1 Ag enzyme immunoassay.

This study will evaluate subjects with fever and/or rash to determine the percentage of those infected by the Zika, Chikungunya, or Dengue virus. The study will also compare the clinical signs, symptoms, and lab abnormalities related to each virus, to better specify each virus's characteristics.

Dengue infection has been identified as the fastest spreading mosquito-borne viral disease by World Health Organization (WHO), which affects more than 2.5 billion people living in the subtropical and tropical regions. Malaysia is hyper-endemic with all four dengue virus serotypes circulating and responsible for the escalating number of cases over the years. As of 28 February 2015, there are 62 deaths secondary to dengue infection being reported in Malaysia; and the total number of dengue cases reported in the same period was 23,966 which is 46% higher than the same reporting period of 2014. Although dengue virus has been identified for so many years and plenty of research work has been carried out, it was proven that there are still many aspects that we are not too sure about the disease. Therefore, this multi-center, observational cohort study is designed to investigate the clinical course of hospitalized dengue infection in Malaysia. The study population of this study consists of male or female patients with dengue to be randomly sampled from hospitals in Malaysia. This study will be conducted in 2 stages whereby the 1st stage will only focus on the basic social and clinical data to describe the clinical course of dengue as general and the 2nd stage will collect the more detailed clinical and management data to describe the detailed clinical course, management and prognosis of dengue. All hospital participation in this study is voluntary, and approval will be obtained from National Institute of Health (NIH) and Medical Research Ethics Committee (MREC) prior to any recruitment.

This study aims to analyse the results of national data collected by the e-Dengue Information System in order to determine the factors associated with disease outcomes in all patients registered from January 2013 to December 2014.