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  • member
  • team
  • department
  • center
  • program_project
  • nrc
  • whocc
  • project
  • software
  • tool
  • patent
  • Administrative Staff
  • Clinical Research Assistant
  • Graduate Student
  • Lab assistant
  • Non-permanent Researcher
  • Permanent Researcher
  • PhD Student
  • Physician
  • Post-doc
  • Project Manager
  • Research Engineer
  • Retired scientist
  • Technician
  • Undergraduate Student
  • Visiting Scientist
  • Deputy Director of Center
  • Deputy Director of Department
  • Deputy Director of National Reference Center
  • Director of Center
  • Director of Department
  • Director of Institute
  • Director of National Reference Center
  • Group Leader
  • Head of Facility
  • Head of Structure
  • Honorary President of the Departement
  • Labex Coordinator
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Scientific Fields
Diseases
Organisms
Applications
Technique
Starting Date
01
Jan 2017
Ending Date
31
Dec 2019
Status
Ongoing
Members
3
Structures
3
Instituts
1

About

Several emerging arthropod-borne viruses (arboviruses) such as dengue, yellow fever, chikungunya and Zika viruses originate from sylvatic transmission cycles where they are transmitted among non-human primates by arboreal mosquitoes. Initial virus spillover from the sylvatic cycle to the human population is a critical, but poorly documented step underlying arbovirus emergence. Equally important, and even less characterized, is the risk of ‘spillback’ from an established human transmission cycle to the sylvatic environment, as was documented for yellow fever virus in South America. Once entrenched, a newly established sylvatic cycle would be impossible to eradicate. In this project, we will characterize the interface of human/sylvatic interface of arbovirus transmission cycles in rural Laos. Specifically, the project will identify mosquito species that can act as ‘bridge vectors’, i.e., are competent mosquito species with host preferences for both humans and non-human primates.  The project will take advantage of preliminary data from a GEIS-funded mosquito survey in Nakai District, Khammuane Province, in the Nakai National Biodiversity Conservation Area where novel Aedes species to Laos were observed and could possibly play the role as bridge vectors. About 10,000 humans reside in and around this area bordering and within the primary forest of the Annamite Range. This area is ideal for the proposed investigation because it consists of dry evergreen forests, cloud forests and mountainous riverbeds that are the homes of various mosquito species and monkeys with occasional incursions of humans.