Chickenpox (varicella)

About chickenpox

Varicella (chickenpox) is a contagious viral infection caused by the varicella-zoster virus. It spreads through:

  • respiratory droplets; or 
  • direct contact with the fluid from its itchy blisters. 
     

Symptoms usually include:

  • a fever;
  • tiredness; and 
  • a rash that turns into small, fluid-filled blisters. 
     

Most children recover without issues, but chickenpox can sometimes lead to serious illnesses such as:

  • skin infections; 
  • pneumonia; or 
  • brain inflammation. 
     

After you recover from chickenpox, the varicella-zoster virus remains dormant in your body's nerves. The virus can reactivate later in life and cause shingles.

Resources

  • The varicella vaccine is given as a 2-dose series and is offered to everyone who’s susceptible to the virus. It’s typically given at: 

    • 1 year of age; and 
    • 4 to 6 years of age, before children begin school. 
       

    The vaccine is also available for free to older children and adults who’ve not been immunized. 

  • Speak with your health care provider if you or your child: 

    • had a life-threatening reaction to a previous dose of this vaccine; 
    • has an immune system weakened by disease or medical treatment; 
    • received a blood transfusion or other blood products within the past 12 months; 
    • has active, untreated tuberculosis; or 
    • is pregnant or planning to become pregnant. 
       

    Avoid pregnancy 1 month after getting a live vaccine. 
     

    There’s no need to delay getting immunized because of a cold or other mild illness. If you have concerns, speak with your health care provider.

  • Vaccination helps:

    • protect against chickenpox;
    • reduce the risk of serious complications;
    • reduce the spread of chickenpox in the community;
    • protect newborns, pregnant people and people with weakened immune systems; and
    • reduce the risk of shingles later in life.
       

    The vaccine is safe, effective and free for eligible people in the Yukon.

  • Vaccines are very safe, and it’s much safer to get the vaccine than to get chickenpox. 
     

    Common reactions are usually mild, resolve within a few days. They may include: 

    • redness, tenderness or swelling at the injection site; 
    • a mild fever; and 
    • tiredness. 
       

    A mild fever and a rash that looks like chickenpox but with fewer spots can occur about 2 weeks after the vaccine is given. 

    To manage symptoms: 

    • use a cool, damp cloth on the injection site; and 
    • use acetaminophen if needed. 
       

    After you get the vaccine

    • Stay at the clinic for 15 minutes after getting any vaccine.
    • Severe allergic reactions are very rare. Clinic staff are trained to treat them right away.
    • If you have symptoms of a severe reaction after leaving the clinic, call 911 or your local emergency number right away.
    • If you or your child has a serious or unexpected reaction after vaccination, contact your health care provider or local health centre.

Find out how to get immunized