Search results for "Chikungunya"
showing 10 items of 17 documents
Milieu de vie et santé : la gestion des maladies transmissibles vectorielles à l'Ile de la Réunion à partir de l'exemple du chikungunya
2011
synthèse des résultats d'un projet ANR dans le cade du prgramme SEST
Vertical transmission of naturally occurring Bunyamwera and insect-specific flavivirus infections in mosquitoes from islands and mainland shores of L…
2018
Background Many arboviruses transmitted by mosquitoes have been implicated as causative agents of both human and animal illnesses in East Africa. Although epidemics of arboviral emerging infectious diseases have risen in frequency in recent years, the extent to which mosquitoes maintain pathogens in circulation during inter-epidemic periods is still poorly understood. This study aimed to investigate whether arboviruses may be maintained by vertical transmission via immature life stages of different mosquito vector species. Methodology We collected immature mosquitoes (egg, larva, pupa) on the shores and islands of Lake Baringo and Lake Victoria in western Kenya and reared them to adults. Mo…
Chikungunya, a water-borne disease: how have the inhabitants of the Island of Reunion handled the crisis ?
2012
The Reunion Island faced a great epidemic of chikungunya in 2005-2006. Chikungunya is a vector-borne disease transmitted by a mosquito. It is in the town of St Pierre, in the south of the island, that the first cases of chikungunya appeared in 2005. We chose to work on one area of the Ravine des Cabris, in the town of Saint-Pierre in the south of the Reunion Island, where individual housing outweighs the block of flats, where houses are surrounded by gardens – closed in for most of them, well watered- and where the foliage is important: we are in a green urban area which is a place of high prevalence. It concentrates the conditions that favour the contact man / vector and therefore the spre…
Vulnérabilité des populations face à une maladie transmissible vectorielle : l'exemple du chikungunya à l'ile de la Réunion
2013
International audience
Development of a Sensitive Detection Method for Alphaviruses and Its Use as a Virus Neutralization Assay
2021
Alphaviruses have a single-stranded, positive-sense RNA genome that contains two open reading frames encoding either the non-structural or the structural genes. Upon infection, the genomic RNA is translated into the non-structural proteins (nsPs). NsPs are required for viral RNA replication and transcription driven from the subgenomic promoter (sgP). Transfection of an RNA encoding the luciferase gene under the control of the sgP into cells enabled the detection of replication-competent chikungunya virus (CHIKV) or Mayaro virus (MAYV) with high sensitivity as a function of the induced luciferase activity. This assay principle was additionally used to analyze virus-neutralizing antibodies in…
Multiple Linear Regression to predict larvicidal activity against <em>Aedes aegypti </em>mosquito
2017
Vector-borne diseases are one of the important health problems in most tropical countries. Aedes aegypti is an important vector for transmission of dengue, yellow fever, chikungunya, arthritis, and Zika fever. According to the World Health Organization, it is estimated that Ae. aegypti causes 50 million infections and 25,000 deaths per year. The emerging scenario highlights that the eco-friendly and effective control measures for mosquito vectors is of crucial importance. One of the most effective vector control measures has been the use of larvicidal compounds however; this success was short lived due to development of resistance against them in many mosquito strains, ecological imbalance …
Savoirs, représentations et comportements des réunionnais en matière de santé et d'environnement 18 mois après l'épidémie de chikungunya
2009
The outbreak of Chikungunya in Reunion in 2005/2006 surprised by its intensity and by the appearance of serious forms. It has left health professionals and relatively poor populations facing the lack of appropriate treatment. From the example of Chikungunya, the general objective of our multidisciplinary research was to study how two types of factors interact in the management of a vector-based disease: those related to representations and knowledge of the disease, and those related to to the perception of the environment. In this poster, we present the results of a questionnaire survey conducted in November 2007 among the inhabitants of a district of Ravine des Cabris (Commune of St Pierre…
Transmissible vector diseases: representations, behaviors and personal involvement in health and environment after the chikungunya epidemic
2011
As part of the ANTHROPO-MTV research project (ANR SEST program), we focused on common sense thinking about vector-borne diseases, using the example of chikungunya, through an interdisciplinary quantitative survey carried out at Meeting. Here we present the results from the psychosocial component. The survey was conducted by questionnaire in November 2007 among 415 households. It was preceded by interviews with inhabitants of the island and with various institutional and health professionals. These interviews were supplemented by field observations, in particular during the prevention operations of LAV teams from the DRASS. In terms of results: We have identified the social representations o…
Chikungunya, a water -borne disease: how have the inhabitants of the Island of Reunion handled the crisis?
2012
International audience
Du fouillis végétal à l'espace gazonné : structure et typologie des jardins réunionnais de la Ravine des Cabris
2014
International audience; S’intéresser aux jardins de l’île de la Réunion ne procède pas uniquement d’un attrait naturaliste ou esthétique car les jardins sont aussi des espaces de vie qui ont été au centre des préoccupations lors de l’épidémie de chikungunya qui a sévit sur l’île de 2005 à 2006. Les politiques de prévention ont mis l’accent sur le risque que constituait le jardin et il a été rapidement demandé à la population de devenir acteur en agissantsur son environnement et en éliminant les sources potentielles de gîtes. Dans le cadre d'un projet de recherches ANR SEST (2006-2009) « Anthropo-MTV » sur la gestion de l’épidémie de chikungunya les auteurs ont mené une enquête sur les jardi…