Publications by authors named "A Lavergne"
Article Synopsis
- - cVDPV3s were found in wastewater samples in French Guiana between May and August 2024, indicating the detection of circulating type 3 vaccine-derived polioviruses.
- - The oral polio vaccine isn’t used in the area, suggesting these polioviruses may have been imported or derived from a vaccine strain.
- - This situation emphasizes the need for environmental monitoring to catch and eliminate any hidden poliovirus activity, which is vital for the global polio eradication effort.
Article Synopsis
- Bacterial endosymbionts are common in mosquitoes and can influence reproduction and block virus transmission, making them potential tools for vector control.
- In French Guiana, a study found that 65.9% of tested mosquito species carried these bacteria, though the major dengue vector showed no infection.
- The research provides insights into the prevalence and types of these bacteria, which can inform future strategies for controlling disease-carrying mosquito populations in the region.
Article Synopsis
- Research indicates that stimulating pancreatic beta cell regeneration could help treat diabetes, utilizing zebrafish which can effectively regenerate these cells from ductal progenitors.
- A study identified the protein phosphatase calcineurin (CaN) as a significant factor influencing this regeneration process, where overexpressing CaN hindered the regenerative response while inhibiting it promoted beta cell regeneration.
- Interestingly, the increased proliferation of progenitor cells due to CaN inhibition was linked to their eventual exhaustion, suggesting that CaN plays a crucial role in balancing cell proliferation and differentiation to maintain an adequate pool of progenitors for beta cell regeneration.
Pathogens transmitted by mosquitoes (Diptera, Culicidae) in sylvatic or urban cycles involve wild or domestic animals and humans, driven by various mosquito species with distinct host preferences. Understanding mosquito-host associations is crucial for ecological insights and pathogen surveillance. In this study, we analyzed mosquito blood meals from coastal French Guiana by amplifying and sequencing host DNA from blood-fed females.
View Article and Find Full Text PDFFrench Guiana experienced an unprecedented dengue epidemic during 2023-2024. Prior to the 2023-2024 outbreak in French Guiana, DENV-3 had not circulated in an epidemic manner since 2005. We therefore studied retrospectively the strains circulating in the French Territories of the Americas (FTA)-French Guiana, Guadeloupe, and Martinique-from the 2000s to the current epidemic.
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