Health ❯ Public Health ❯ Epidemiology

Disease Surveillance

Variant Monitoring Human Cases Case Reporting Vaccination Influenza Surveillance Variant Tracking Outbreak Management Infection Rates Infection Control Outbreak Response WHO Recommendations Case Tracking Risk Assessment West Nile Virus Cases Contact Tracing COVID-19 Variants Preventive Measures Genomic Surveillance COVID-19 Cases COVID-19 Surveillance Infectious Disease Control Lyme Disease Cases Wastewater Analysis H5N1 Monitoring Case Investigation Pandemic Preparedness COVID-19 Monitoring Global Health Concerns Animal-Related Diseases Human Infection Cases Genomic Sequencing Influenza Monitoring Health Alerts Influenza Influenza A (H3N2) Mosquito Surveillance Measles Cases Chikungunya Surveillance Vector Control Outbreak Investigation Wastewater Surveillance Endemic Diseases WHO Monitoring Community Spread Vaccination Strategies West Nile Virus Outbreak Dengue Cases in Texas Regional Outbreaks Case Reports Emerging Infectious Diseases Contagion Tracking India Travel-Related Infections Vaccine Recommendations Poliovirus International Health Respiratory Virus Tracking Case Statistics Influenza Statistics Containment Measures Waterborne Diseases Rapid Response Teams Seasonal Patterns Regional Health Assessment Virus Mutation Infection Statistics Zoonotic Diseases Response Strategies Blood Donation Variants Abwasser-Monitoring CDC Data Malaria in Children H5N1 Cases in the US West Nile Virus Surveillance Democratic Republic of the Congo WHO Reports Local Transmission Vector-Borne Disease Surveillance Travel Health CDC Gonorrhoea Statistics COVID-19 Data Reporting Invasive Infections WHO Classification Influenza Outbreaks Infectious Disease Reporting Seasonal Illness Trends Risk Groups Mosquito Control INSACOG Data Testing Rates SARS-CoV-2 WHO Borreliose WHO Guidelines Foodborne Illness Encephalitis Cases Illness Characterization

Norovirus Activity Climbs Nationwide as LA County Wastewater Signals Surge

Early wastewater and clinical signals are prompting officials to emphasize soap-and-water handwashing with bleach-based disinfection.

Washington Reports First Human H5N5 Bird Flu Case Following Patient’s Death

Washington State Resident Dies in World’s First Human H5N5 Bird Flu Case

First Known Human H5N5 Bird Flu Case Turns Fatal, Washington Officials Say

Ethiopia Confirms First Marburg Outbreak With Three Deaths in Omo Region

Washington Confirms First Human H5N5 Bird-Flu Case as CDC Maintains Low Public Risk

Second West Nile Detection Confirmed in Hays County Mosquito Trap

L.A. County Confirms Third Local Clade I Mpox Case as Officials Probe Possible Community Spread

West Nile Cases Rise in Missouri as Pasadena Confirms First Human Case Since 2022

Two More West Nile Cases in Massachusetts as 47 Communities Reach High Risk

South Carolina Confirms First Eastern Equine Encephalitis Death in More Than 20 Years

WHO: Ebola Outbreak in DRC Reaches 48 Cases, 31 Deaths as Response Accelerates

U.S. West Nile Cases Climb to 771 as 2025 Season Runs 40% Above Normal

CDC-Published Researchers Urge Endemic Status for Chagas as ‘Kissing Bugs’ Are Found in 32 States

DR Congo Declares Ebola Outbreak in Kasai as Zaire Strain Confirmed

Experts Press CDC and WHO to Label Chagas Disease Endemic in the Southern U.S.

First Human West Nile Cases Confirmed in Massachusetts and Delaware County as Mosquito Positives Surge

West Nile Activity Intensifies With 2 Deaths in Minnesota and New Signals in New York, Maryland and Indiana

Europe Logs Record Chikungunya Outbreaks as Global Surge Intensifies

California Valley Fever Cases Surge Toward Another Record in 2025