vaccination
Due to rising measles cases, PAHO has called Americas countries to intensify immunization efforts. The Americas Vaccination Week runs from April 25 to May 2. Over 15,300 cases were recorded by April 5, 2026.
由 AI 报道
Building on recent surges in Europe and the US, the World Health Organization has issued a formal alert for the 2025-2026 flu season due to the rapid global spread of influenza A(H3N2) subclade K (J.2.4.1) since August 2025. While not more severe, its advance prompts preparations in the Northern Hemisphere and anticipation in the Southern Hemisphere, including Brazil.