Contagious Diseases

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

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

County officials are coordinating with state and federal health agencies to trace contacts, advise vaccination, quarantine, symptom monitoring

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