1. Take the Chickenpox Quiz!
2. Childhood Skin Problems Slideshow
3. View Images of Chickenpox (Varicella)

Medical Author:

John Mersch, MD, FAAP

John Mersch, MD, FAAP

Dr. Mersch received his Bachelor of Arts degree from the University of California, San Diego, and prior to entering the University Of Southern California School Of Medicine, was a graduate student (attaining PhD candidate status) in Experimental Pathology at USC. He attended internship and residency at Children's Hospital Los Angeles.

View Full Profile

Medical Editor:

Melissa Conrad Stöppler, MD, Chief Medical Editor

Melissa Conrad Stöppler, MD, Chief Medical Editor

Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

View Full Profile

Varivax, a two-dose vaccine for chickenpox, is highly recommended for healthy children, adolescents, and adults. A chickenpox vaccine was first approved by the Food and Drug Administration in 1995 and is widely available. A combination measles, mumps, rubella, and varicella (MMRV) vaccine was licensed in the United States in 2005 for use among healthy children 12 months-12 years of age.

The U.S. Centers for Disease Control and Prevention recommends that all healthy children 12 months through 12 years of age receive two doses of chickenpox vaccine, administered at least three months apart. Children who have evidence of immunity to varicella do not need the vaccine. Those aged 13 and over who do not have evidence of immunity should get two doses of the vaccine four to eight weeks apart.

When fully immunized, the vaccine has been shown to be 95% effective in preventing childhood cases of chickenpox. A small percentage of newly immunized people will develop a mild rash. Pregnant women and infants younger than 1 year of age should not be vaccinated.

Must Read Articles Related to Chickenpox

Fever in Children Fever is defined as a rectal temperature over 100.4 F or 38.0 C. Fever isn't life-threatening unless it is persistently high -- greater than 107 F rectal temper...learn more >>

Immunization Schedule, Adults At least 45,000 adults in the United States die of complications of influenza, pneumococcal infections, and hepatitis B each year. These diseases, and others th...learn more >>

Immunization Schedule, Children Vaccinations are some of the most important tools available for preventing disease. Most children get all their shots during childhood. Parents should consult t...learn more >>

See the Entire Chickenpox Topic Guide »