Overview
- Chile coordinated the temporary closure with Argentine authorities to disinfect the Los Libertadores complex and conduct entomological controls.
- Transit was halted from Thursday morning at Uspallata (Argentina) and Guardia Vieja (Chile), with the tunnel closed from noon Thursday to noon Friday.
- Health officials reported no symptomatic cases among personnel and no confirmed local dengue transmission in continental Chile.
- Laboratory confirmation of the specimen’s identity remains pending with Chile’s Institute of Public Health.
- The action follows a national sanitary alert issued in late January after an Aedes detection at Santiago’s airport, and Friday’s reopening may see delays as vehicles queue and traffic is managed in groups.