Contagious Diseases

Measles Transmission Symptoms Norovirus Transmission Methods Viral Infections Measles Outbreaks Public Health Mpox Whooping Cough Hepatitis A Hygiene Practices Transmission Rates Measles Virus Contagion Period Symptoms and Transmission Respiratory Illnesses Transmission of Illnesses Symptoms of Measles Symptoms and Complications Tuberculosis Measles Transmission Symptoms and Treatment Health Conditions Measles Symptoms Medical Needs

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.

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

Norovirus Outbreak Shuts Creekview Middle School for Friday Disinfection

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