Health ❯ Epidemiology

Disease Spread

Contagious Diseases Global Health Variant Tracking Transmission Methods Transmission COVID-19 Variants Infection Rates Geographic Distribution COVID-19 Variants

Norovirus Activity Rises Early, With Wastewater Spikes in Michigan and Los Angeles County

Soap-and-water handwashing remains the primary defense against a virus that resists many sanitizers.

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

UK Flu Wave Builds Early as Mutated H3N2 Drives Rising Cases and Hospital Admissions

NHS Reissues Covid Advice as UKHSA Data Show Small Dip in Hospital Cases

Euskadi Flu Cases Dip, Virus Circulation Remains High

Hoarse Voice Now Common in XFG Covid Cases as UK Urges Winter Vaccinations

California Confirms First U.S. Local Spread of More Severe Clade I Mpox

Upstate South Carolina Measles Cases Climb to 19 as Spartanburg Outbreak Reaches 15

Large French Study Finds No Increase in Birth Defects After First-Trimester mRNA COVID Vaccination

XFG 'Stratus' Variant Now Dominant Worldwide as Risk Remains Low

UK Steps Up Covid Advice as Stratus Variant Leads Early Autumn Rise

Stratus Variant Drives UK Autumn COVID Rise as Health Officials Urge Vaccinations

UK Covid Uptick Prompts Fresh Isolation Reminder as Pharmacists Urge Testing

WA Measles Cases Reach 47 as Pilbara Cluster Grows to Eight

Measles Resurgence: Catalonia Confirms Active Garraf Cluster as Mexico's Outbreak Nears 5,000 Cases

Stratus and Nimbus Variants Fuel UK Covid Rise as Officials Renew Public Guidance

NIH Study: 80% With Covid-Linked Smell Changes Still Test Impaired Two Years Later

UKHSA Renews Stay-Home Advice as Stratus and Nimbus Drive UK Covid Uptick

XFG Covid Variant Drives September Uptick as France Plans Oct. 14 Vaccinations

XFG Variant Drives Covid Rise in France as Vaccine Rollout Remains Set for Oct. 14