Argentina’s Dengue Season Begins with Local Transmission Concerns

Argentina’s dengue season has started with 1,443 confirmed cases, primarily from local transmission. Major outbreaks have occurred in Central and Northwest regions. The Health Ministry is implementing strategic plans and new data technology to anticipate future outbreaks, while the CDC advises international travelers on health risks in endemic areas.

The dengue season in Argentina for 2024/2025 has commenced with 1,443 confirmed cases reported by the Ministry of Health as of week 31 of 2024. A striking 96.9% of these cases indicated no travel history, implying robust local mosquito transmission. The most affected areas are Central Argentina, reporting 816 cases, and Northwest Argentina with 237 cases.

Additionally, 45 dengue cases involved individuals who had traveled to various countries including Brazil, Cuba, Mexico, and Thailand. In 2024, Argentina saw approximately 581,000 dengue infections and 400 related deaths. To combat this, a meeting led by Health Minister Mario Lugones on March 11, 2025, focused on ongoing strategies for dengue prevention during this season and future outbreaks.

Key developments include a new national dynamic map that integrates geographic, demographic, and climate data, facilitating the anticipation of potential dengue outbreaks. In light of these developments, the U.S. CDC has reissued a Travel Health Advisory urging caution due to the dengue epidemic in the Americas, advising travelers to endemic regions to avoid mosquito bites, as no dengue vaccines are currently available in the U.S. Routine vaccinations for diseases like chikungunya and yellow fever are still recommended for travelers to Argentina in 2025.

The dengue season in Argentina has begun with a significant number of locally transmitted cases. The ongoing response includes strategic planning and public health mapping to better predict and manage outbreaks. Meanwhile, international travelers are urged to take precautions as dengue remains a health risk, particularly in endemic regions without available vaccines.

Original Source: www.vax-before-travel.com