Contagious Diseases

Measles Transmission Symptoms Norovirus Transmission Methods Viral Infections Measles Outbreaks Transmission of Illnesses Respiratory Illnesses Hygiene Practices

Wisconsin Confirms Two New Measles Cases in Iowa and Lafayette Counties

State investigators say the infections were likely acquired in Wisconsin, a finding that raises concern about possible undetected spread.

Man Who Left Preston Hospital Reported Missing and May Be Contagious

Five Measles Cases Tied to Out‑of‑State Travel Prompt Exposure Alert in Maryland

Health Agencies Warn Travelers of Measles Exposure at Toronto and Philadelphia Airports

Measles Case Traced to SFO International Terminal and Two San Jose Markets

Alberta Issues Measles Exposure Alerts for Two Hospitals After April 4 Visits

Norovirus Outbreak Shuts Creekview Middle School for Friday Disinfection

Post-Christmas Norovirus Cases Rise as UK and U.S. Signals Point Higher

New Whooping Cough Case in West Virginia as Wyandotte County Reports Increase

Measles Resurgence: OC Toddler Isolated, Cook County Logs Third Case as U.S. Total Reaches 1,514

Arizona–Utah Border Measles Cluster Grows to 78 Cases as Officials Urge Vaccination

Dallas County Confirms First Measles Case of 2025 in Vaccinated Woman

UK Norovirus Cases Remain Unseasonably High, Prompting Renewed Warnings

India Confirms First Case of Highly Transmissible Mpox Clade 1b