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Signs & Symptoms

Español: Signos y síntomas

Sick daughter with father.Anyone who hasn’t had chickenpox or received the chickenpox vaccine can get the disease. Chickenpox most commonly causes an illness that lasts about 5-10 days.

The classic symptom of chickenpox is a rash that turns into itchy, fluid-filled blisters that eventually turn into scabs. The rash may first show up on the face, chest, and back then spread to the rest of the body, including inside the mouth, eyelids, or genital area. It usually takes about one week for all the blisters to become scabs.

Other typical symptoms that may begin to appear 1-2 days before rash include:

  • high fever
  • tiredness
  • loss of appetite
  • headache

Children usually miss 5 to 6 days of school or childcare due to their chickenpox.

Vaccinated Persons

Some people who have been vaccinated against chickenpox can still get the disease. However, the symptoms are usually milder with fewer blisters and mild or no fever. About 25% to 30% of vaccinated people who get chickenpox will develop illness as serious as chickenpox in unvaccinated persons.

People at Risk for Severe Chickenpox

Some people who get chickenpox may have more severe symptoms and may be at higher risk for complications. For more information, see complications.

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