2025-02-19-世界卫生组织-Influenza_Update_N°_514_1页_1mb

In the Northern Hemisphere, influenza activity remained elevated across many regions, with predominant strains including influenza A(H1N1)pdm09 in North America and Asia, A(H3N2) in Central America and Northern Africa, and influenza B in Tropical South America. Activity increased in parts of North America, North Africa, Europe, and Western Asia compared to the previous week.

In the Southern Hemisphere, influenza activity was elevated in a few Eastern African countries, South-East Asia, and Oceania (mostly A(H1N1)pdm09), but decreased in several reporting countries relative to the prior report.

Globally, SARS-CoV-2 activity was generally low, with a few exceptions showing elevated cases in parts of Central and South America and Eastern Africa.