Publications by authors named "Johana Restrepo"

Background: The spread of mosquito-transmitted diseases such as dengue is a major public health issue worldwide. The Aedes aegypti mosquito, a primary vector for dengue, thrives in urban environments and breeds mainly in artificial or natural water containers. While the relationship between urban landscapes and potential breeding sites remains poorly understood, such a knowledge could help mitigate the risks associated with these diseases.

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Oropouche fever is a zoonotic dengue-like syndrome caused by Oropouche virus. In August-September 2020, dengue-like syndrome developed in 41 patients in a remote rainforest village in French Guiana. By PCR or microneutralization, 23 (82.

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Background: Aedes aegypti is the sole vector of urban arboviruses in French Guiana. Overtime, the species has been responsible for the transmission of viruses during yellow fever, dengue, chikungunya and Zika outbreaks. Decades of vector control have produced resistant populations to deltamethrin, the sole molecule available to control adult mosquitoes in this French Territory.

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Article Synopsis
  • In 2017, a malaria outbreak caused by Plasmodium vivax emerged along the French Guiana-Brazil border, reversing a trend of declining cases from 2005 to 2016.
  • Two studies were conducted: one local investigation focused on a health center in French Guiana, while the other examined regional patterns across the border using surveillance data.
  • Results showed significant infection rates, particularly in Indigenous neighborhoods, and identified seasonal peaks and cluster areas of transmission, indicating a resurgence of malaria in an otherwise declining area.
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Mosquitoes are vectors of arboviruses affecting animal and human health. Arboviruses circulate primarily within an enzootic cycle and recurrent spillovers contribute to the emergence of human-adapted viruses able to initiate an urban cycle involving anthropophilic mosquitoes. The increasing volume of travel and trade offers multiple opportunities for arbovirus introduction in new regions.

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