The study found that chickenpox deaths fell from an average of
105 per year to 14, after the vaccine had been available for 12
Study co-author Jane Seward of the CDC says, "To see the near
elimination of chickenpox deaths in this country is very
Chickenpox is caused by a virus and is highly contagious. Most
kids suffer no more than an itchy skin rash and a fever, but
symptoms can be serious.
Severe cases are more common among adolescents and adults who get it for the first time. Also, the virus can reactivate in people
later in life and cause a painful illness called shingles.