Health ❯ Epidemiology

Disease Surveillance

Case Reporting Measles Cases Infection Rates Outbreak Management Outbreak Investigation Variant Tracking Contact Tracing Variant Monitoring Human Cases Flu Cases

Flu Surge Accelerates as H3N2 ‘Subclade K’ Becomes Dominant in U.S.

Early analyses indicate reduced vaccine match with sustained protection against hospitalization.

Peru Confirms Six H3N2 Subclade K Cases as Health Ministry Urges Calm

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

New Simulation Finds H5 Bird Flu Could Reach Community Spread in 48 Hours

South Carolina Measles Outbreak Grows to 144 as U.S. Cases Near 2,000

Texas, Houston Warn of Whooping Cough Surge as U.S. Cases Stay Elevated

Norovirus Activity Climbs Nationwide as LA County Wastewater Signals Surge

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

South Carolina Measles Outbreak Grows to 126 Cases as Hundreds Are Quarantined

Norovirus Activity Climbs Early Across U.S. as UK Reports Smaller Rise

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

South Carolina Measles Outbreak Accelerates With Hundreds Quarantined

Norovirus Is Surging Early Across the U.S. as Wastewater Signals Climb

UNICEF: DRC Faces Worst Cholera Outbreak in 25 Years, With 64,000 Cases and Nearly 2,000 Dead

CDC Confirms Norovirus Outbreak on AIDAdiva, Marking 21st Cruise Outbreak of 2025

New Measles Case Linked to South Jordan Child Care as Utah Total Reaches 115

Montana Confirms Two Gallatin Measles Cases as Officials Post Exposure Sites

Congo Declares Ebola Outbreak Over After 42 Days Without New Cases

Norovirus Is Climbing in the U.S. as UK Hospitals Tell Recent Patients to Stay Away