Increased threat of urban arboviral diseases from Aedes aegypti mosquitoes in Colombia

Rosa Margarita Gélvez Ramírez (1, 2) , Chloé Bohers (3) , Laurence Mousson (3) , Yoann Madec (4) , Marie Vazeille (3) , Géraldine Piorkowski (1) , Sara Moutailler (5) , Francisco Diaz (6) , Guillermo Rúa-Uribe (6) , Luis Angel Villar (2) , Xavier de Lamballerie (1) , Anna-Bella Failloux (3)

1 UVE - Unité des Virus Emergents
2 CDI - Centro de Atención y Diagnóstico de Enfermedades Infecciosas [Bucaramanga, Colombia]
3 Arbovirus et Insectes Vecteurs - Arboviruses and Insect Vectors
4 Epidémiologie des Maladies Emergentes - Emerging Diseases Epidemiology
5 BIPAR - Biologie moléculaire et immunologie parasitaires et fongiques
6 Universidad de Antioquia = University of Antioquia [Medellín, Colombia]

Objectives Our study targets the potential of the local urban mosquito Aedes aegypti to experimentally transmit chikungunya virus (CHIKV), dengue virus (DENV), yellow fever virus (YFV), and Zika virus (ZIKV). Methods We collected eggs and adults of Ae. aegypti in Medellín, Colombia (from February to March 2020) for mosquito experimental infections with DENV, CHIKV, YFV and ZIKV and viral detection using the BioMark Dynamic arrays system. Results We show that Ae. aegypti from Medellín was more prone to become infected, to disseminate and transmit CHIKV and ZIKV than DENV and YFV. Conclusions Thus, in Colombia, chikungunya is the most serious threat to public health based on our vector competence data.

Mots clés: Aarbovirus; Aedes aegypti; Colombia; Vector competence

Domaines: Sciences du Vivant [q-bio]; Biodiversité et Ecologie; Zoologie des invertébrés; Interactions entre organismes

Rosa Margarita Gélvez Ramírez, Chloé Bohers, Laurence Mousson, Yoann Madec, Marie Vazeille, et al.. Increased threat of urban arboviral diseases from Aedes aegypti mosquitoes in Colombia. IJID Regions, 2024, 11, pp.100360. ⟨10.1016/j.ijregi.2024.100360⟩. ⟨pasteur-04548947⟩