View clinical trials related to Zika Virus.
Filter by:This study will include 4 cohorts of 14 ZIKV and DENV-naïve female and male subjects, 18 - 40 years of age (total: up to 56 subjects). Within each cohort, 10 subjects will receive ZIKV and 4 subjects will receive a placebo on Study Day 0. Cohorts 1 and 2 (Dose = 10^2 PFU) will be enrolled first and will enroll only women. Cohorts 3 and 4 (Dose = 10^2 PFU) will enroll men.
Congenital Zika virus syndrome (SCZv) has been gaining attention in studies due to changes in the central nervous system and in the motor development of children. These changes resulted in an unexpected picture and without future predictability, with the appearance of several functional impairments and also on orthostatic posture. In this context, the protocol of orthostatism proposed here is a 10-week program of the use of a postural adjuster, the standing frame, made of its own with alternative material to the commercial models (cardboard). The use of low cost materials allows these devices to be made in the desired size without cost high, individually adapted, easy to be transported as it is light and can still be colored. It is an equipment that offers the opportunity to experience the orthostatic posture and mainly benefits children with little economic resources that enable the acquisition of traditional devices made of iron or wood and even imported equipment. The postural adjuster allows physical and sensorial opportunity, being an auxiliary resource in standing positioning, feasible for home use, besides being useful for performing functional activities. Thus, the objective will be to analyze the repercussions of the use of the standing frame on body alignment, muscle tone, gross motor function and gastrointestinal functions of children with SCZv. An uncontrolled intervention study will be conducted with children between 12 and 24 months of age, who will undergo an evaluation before use and after the use of the adjunct along with the proposed orthostatism protocol. The postural alignment will be evaluated through photogrammetry and the evaluation of muscle tone will be performed through the modified Tardieu scale. The Gross Motor Function Measure (GMFM) scale will be used to assess the gross motor function of the children involved in the study. Questionnaires will be applied for the collection of maternal socio-demographic data, the child's data, the type and time of therapy that the child already participates, and the gastrointestinal functions. Evaluations will occur in four moments: initial / before use, on the first day of placement in the adjuster, after the first month after use and after the second month of use. For statistical analysis, the Shapiro Wilk Test will be applied to evaluate the normality of the data, and the Friedman or ANOVA tests for repeated samples, to analyze intra-group time factor for the dependent variables of each individual.
There are hundred of arbovirus which have been shown to cause disease in humans. Their most common clinical symptoms are algo-eruptive (dengue, chikungunya, zika), hemorrhagic fever (dengue, yellow fever, Crimean-Congo hemorrhagic fever), neurological (West Nile, Zika, dengue, Japanese encephalitis) or arthritic afflictions (Chikungunya, O'nyong nyong). Dengue is a mosquito-born viral disease caused by 4 different serotypes of virus. Dengue fever (DF) is defined by the sudden onset of fever with non-specific constitutional symptoms, recovery occurring spontaneously in 3 to 7 days. The infection can sometimes progress to dengue hemorrhagic fever (DHF) characterized by a transient increase in vascular permeability provoking a plasma leakage syndrome. DHF can be complicated by shock and internal hemorrhage. Other rarer complications include encephalitis, hepatitis, rhabdomyolysis and myocarditis. There is currently no way of predicting the outcome of DF or DHF and the WHO classification lacks sufficient sensitivity and specificity to recognize and guide the management of severe forms of dengue. The pathophysiology of these forms is also poorly known. Since 2000s, the French West Indies and Guiana have become hyperendemic for dengue with simultaneous circulation of the 4 serotypes, regular large outbreaks and severe dengue including fatalities. Chikungunya is a re-emerging virus causing massive epidemics in Africa, in the Indian Ocean and Southeast Asia. The first autochthonous cases were described in French Antilles in Nov 2013. The disease typically consists of an acute illness like dengue fever with abrupt onset of a high-grade fever followed by constitutionals symptoms, poly-arthritis and skin involvement. Usually, the illness resolves in 4 to 6 weeks. However, severe clinical forms in early stage may appear and chronic clinical forms as incapacitating arthralgia which affect 40 to 60% of patients. In France, others arboviruses may cause severe emerging and re-emerging infectious diseases like Zika or West Nile. In non-immunized population these emerging diseases may cause outbreaks with specific severe clinical complications. The French interministerial mission on emerging infectious diseases coordinated by Professor Antoine Flahault, recommended such studies: large prospective multicenter cohort studies to characterize severe forms of arbovirus infections to seek predictive factors and to investigate the pathophysiology of the diseases.