Aedes albopictus in the department of Magdalena, Colombia: spread to the northernmost of the country and implications for arboviral disease transmission

Background: is widely distributed throughout the world. It was introduced into the Americas in 1985 and has been incriminated as secondary vector for arboviruses. In Colombia, this species has been reported in 15 of the 32 departments, mainly in lowlands of the central and southern part of the country. Objective: in the department of Magdalena, Colombia. Design: A descriptive and cross-sectional entomological study was performed in the department of Magdalena, Colombia, between June and December 2025. Methods: Larvae and adult mosquitoes were collected in the intra-, peri-domicile, and surrounding area of six municipalities, as part of the routine entomological surveillance. Subsequently, the specimens were mounted and used for species identification through classical taxonomy. Results: at the entomology unit of the Public Health Laboratory of Magdalena and confirmed by the national health authorities. Conclusion: in this department highlights the importance of continuous entomological surveillance, especially in hyperendemic areas where several dengue virus serotypes and other arboviruses cocirculate and constitute a high disease burden.