WHO: Influenza Update N° 525 May 7, 2025 | Emergency Situational Updates In the Northern hemisphere, influenza positivity continued to decline or remained stable in most countries. Influenza positivity remained elevated in Central America and the Caribbean and Tropical South America (predominantly A(H1N1)pdm09), in Western Africa (predominantly A(H1N1)pdm09), Eastern Africa (predominantly A viruses), in Europe and Western Asia (predominantly A(H3N2) and B), in Southern Asia (predominantly…
