Health ❯ Epidemiology

Disease Transmission

Zoonotic Diseases Contagious Diseases Vector-Borne Diseases Airborne Diseases Human-to-Human Transmission Infection Control Bacterial Infections Mpox Transmission Vector-borne Diseases Contact Tracing Rodent-Borne Diseases Mosquito-Borne Diseases Measles Sexual Health Animal-to-Human Transmission Modes of Transmission Person-to-Person Transmission Mosquito-borne Diseases Zoonotic Transmission Variants Close Contact Risk Assessment Mutations Norovirus Clades of Mpox Foodborne Illness COVID-19 Risk Groups Infection Rates Community Spread Local Transmission Human Health Risks Symptoms Human Cases Sexual Transmission Environmental Factors Transmissibility Human Health Animal-Borne Diseases Close Contact Transmission Variant Spread Waterborne Diseases Mpox Outbreak Investigation Community Transmission Chikungunya Person-to-Person Spread Endemic Diseases Risk Factors Virus Variants Travel-related Infections Mpox Variants Tuberculosis Virus Mutation Preventive Measures Tick-Borne Diseases Mortality Rates Asymptomatic Infections Measles Transmission Vector Ecology Close Contact Diseases Environmental Health Viral Infections Animal Reservoirs Trypanosoma cruzi Avian Influenza Pathogens Human-to-Human Spread Genotypes Triatomine Bugs Late Diagnosis Vectors Covid-19 Transmission Human Transmission Meningitis Bloodborne Pathogens Demographics Flu Transmission Fecal-Oral Route Measles Virus Bacterial and Viral Infections Virus Mutations Hygiene Practices Regional Health Issues Insect-Borne Diseases Viral Variants Seasonal Influenza Contagion Prevention Measles Outbreaks Oncogenic Viruses Contamination Sources Norovirus Spread Cross-Border Health Issues Pathogen Characteristics Aerosol Transmission Legionella Clade Variants Infectious Disease Experts Animal to Human Transmission Clade I Transmission

Two Tuberculosis Cases Confirmed at Long Island High Schools

Contact tracing is underway to identify close exposures.

Measles Exposure Alerts at LAX and Disneyland After Travel-Linked Cases in Southern California

UTEP Study Finds 88% of Borderland Kissing Bugs Carry Chagas Parasite

Measles Exposure Alerts Issued for Boston Logan, Westborough Hotel and Denver Airport

Measles Resurgence Triggers New Airport Alerts as South Carolina, Utah Case Counts Climb

Norovirus Surge Triggers Chicago-Area Remote Schooling as Hospitals and Data Show Spikes

Colorado Confirms 3 New Measles Cases, Pushing 2025 Total to 36

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

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

Salt Lake County Confirms First Measles Case, Signals Community Transmission

Harris County Jail Inmate Dies of Bacterial Meningitis as Rangers Open Investigation

Scientists Assign First R0 to Gut E. coli, Find ST131-A Spreads at Flu-Like Rates

California Confirms Three Local Clade I Mpox Cases, Signaling Possible Community Spread

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

New York Confirms First Locally Acquired Chikungunya Case in Nassau County

Los Angeles County Confirms First Locally Acquired Dengue Case of 2025

CDC Says Chagas Disease Is Now Endemic in the U.S.

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

Pan-African Genome Map of Anopheles funestus Details Rapid Resistance and Control Targets

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