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Influenza

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Flu Surges Nationwide as H3N2 Subclade K Dominates, Straining Hospitals Before Holidays

Officials say the drifted H3N2 offshoot only partly matches this season’s shot, which still reduces severe illness.

Peru Confirms Two H3N2 ‘Subclade K’ Cases in Lima as Vaccination Drive Widens

WHO Says Early H3N2 ‘Subclade K’ Flu Wave Is Straining Hospitals Across Europe

Peru Confirms Two Pediatric H3N2 Subclade K Cases as Region Ramps Up Flu Precautions

Mexico Confirms First H3N2 Subclade K Case as WHO Flags Wider Global Spread

Mexico Confirms First Case as Fast-Spreading H3N2 Subclade K Drives Early Flu Surge

Mexico Tightens Measles Response in Five States as Vaccinations Top 10 Million

H3N2 ‘K’ Flu Surges as Central Florida Warns of Tridemic Risk for Disney Travelers

Drifted H3N2 ‘Subclade K’ Spreads to U.S. as Early Flu Wave Builds

Drifted H3N2 ‘Subclade K’ Drives Early U.S. Flu Uptick Before Holidays

New H3N2 Variant Emerges as Canada’s Flu Season Starts and U.S. Activity Remains Low

New H3N2 ‘Subclade K’ Drives Early Flu Surges as U.S. Officials Urge Vaccination

Russia Sees Flu Uptick as Health Officials Say No Epidemic Yet

Oregon Health Care Worker Flu Vaccination Drops to 54%, State Warns of Patient Risk

Mexico’s Early-2025 Deaths Dip Slightly as Heart Disease, Diabetes and Cancer Lead, INEGI Says

Germany Sees Sharp Autumn Rise in COVID Cases as 'Stratus' Variant Leads

Hong Kong Speeds Up School Flu Vaccinations After 13-Year-Old's Death

Moscow Health Official Urges Flu Shots Now Ahead of Peak Season

Japan’s Flu Season Starts Early: Okinawa Issues Advisory as COVID Cases Decline

Japan Declares Nationwide Influenza Epidemic After Early-Season Surge