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  1. Chickenpox - Symptoms and causes - Mayo Clinic

    Apr 19, 2023 · Chickenpox spreads very easily to people who haven't had the disease or haven't gotten the chickenpox vaccine. Chickenpox used to be a widespread problem, but today the vaccine …

  2. Chickenpox: Causes, Symptoms, Treatment & Prevention

    A virus causes chickenpox. Viruses spread when a person with the virus gives it to another person either through bodily fluid (coughing, sneezing, etc.) or bodily contact (touching the rash).

  3. Chickenpox (Varicella) | Chickenpox (Varicella) | CDC

    Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). Protect your child from severe symptoms with the chickenpox vaccine. Identify common symptoms, causes and …

  4. Chickenpox - Johns Hopkins Medicine

    What causes chickenpox? The disease is caused by the varicella-zoster virus. It is easily passed from person-to-person by direct contact or through the air by coughing or sneezing. Who is at risk for …

  5. Chickenpox - World Health Organization (WHO)

    Feb 4, 2025 · Chickenpox, also called varicella, is a highly contagious disease caused by the varicella-zoster virus (VZV). This virus is a member of the herpesvirus family, and humans are the only known …

  6. Chickenpox | Varicella | MedlinePlus

    Dec 18, 2025 · Chickenpox is a contagious disease caused by the varicella-zoster virus. It causes an itchy rash with blisters. Learn about vaccines and treatment.

  7. Chickenpox: Symptom Stages, Vaccine, How It’s Spread

    Sep 5, 2025 · Varicella-zoster is the virus that causes chickenpox. While anyone can get chickenpox, it is most common in children under 12. 1. Chickenpox is highly contagious and spreads from person …

  8. Chickenpox: Symptoms and Treatment - Health

    Oct 3, 2025 · What Causes Chickenpox? The varicella-zoster virus (VZV) causes chickenpox. You can catch VZV by touching an infected person's rash, breathing in respiratory droplets from their coughs …

  9. Chickenpox | Infectious Diseases - UC Davis Health

    Chickenpox is a highly contagious infection caused by the varicella-zoster virus. A vaccine has reduced cases by 97% in the U.S. If you get it, there is a chance for complications, so timely care is essential. …

  10. Chickenpox - NHS

    Find out more about chickenpox, an infection that's spread easily and causes an itchy, spotty rash.