Health ❯ Epidemiology

Flu Season

Hospitalization Rates Statistics Flu Cases Trends Hospitalizations Flu Statistics Mortality Rates Virus Variants Outbreaks Vaccination Rates Healthcare Impact Vaccine Mismatch Southern Hemisphere Illness Statistics Severity Predictions Flu Activity Levels Global Health Flu Cases Statistics Surveillance Data Hospital Admissions Impact of Vaccination Disease Spread Demographics Seasonal Flu Trends Flu Trends Case Statistics Flu Variants Impact on Society Flu Activity Virus Mutations Flu Deaths Geographical Spread Virus Mutation Influenza Variants Infection Rates Virus Strains Strains Symptoms Projections Surveillance Reports Health Statistics Flu Hospitalizations Public Health Response Flu Strains Child Mortality Vaccine Efficacy Vaccination Uptake

San Francisco Reports First Flu-Related Death of 2026–27 Season

City health officials are pushing wide vaccination and simple precautions to limit a local early surge that differs from low national respiratory activity.

Massachusetts Confirms Seventh Pediatric Flu Death as U.S. Toll Climbs

CDC Signals Second Flu Peak as Pediatric Deaths Reach 52

Flu Surges to 25-Year High as H3N2 ‘Subclade K’ Drives U.S. Wave

U.S. Pediatric Flu Deaths Rise to Nine as H3N2 Surge Strains Hospitals

New H3N2 ‘Subclade K’ Drives Early U.S. Flu Surge as New York Sets Weekly Case Record

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

Mutated H3N2 Strain Spurs Early Flu Rise as UK Admissions Climb and California, Chicago Flag Increases

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

Flu-Linked Acute Necrotizing Encephalopathy Surges in U.S. Children