2024-06-25-世界卫生组织-Influenza_Update_N°_481_1页_1mb

Influenza Activity: In the Northern Hemisphere, elevated activity reported in Central America, Caribbean, South Asia (primarily A(H3N2)), and West Africa (A(H3N2) and B viruses); low activity in temperate countries. In the Southern Hemisphere, activity elevated in South America, Oceania, and South Africa (may have peaked), with South America dominated by A(H3N2), South Africa by A(H1N1)pdm09, and Oceania by both A(H1N1)pdm09 and A(H3N2).

SARS-CoV-2 Activity: Elevated and increasing in Western/South West Europe, West Africa, and South East Asia based on sentinel surveillance data.

Additional Information: Data from 57 countries on respiratory specimens, monitored through RespiMart using sentinel surveillance; smoothed positivity rates calculated. No inclusion of other surveillance approaches.