Protects against chickenpox, caused by the varicella-zoster virus. It is highly transmissible, characterized by itchy lesions on the body, common in the child age group and may present more intense symptoms in adults. The vaccine is a live attenuated virus and the route of administration is subcutaneous. The National Immunization Program recommends two doses, the first at 15 months and the second at 4 years of age. It is available in isolated form and in conjunction with MMR, called tetraviral (in SUS) and viral quadruple (in the private system).
The Vaccine Observatory studies routine vaccines indicated for children under two years of age (except flu and yellow fever), considering the recommendations of the National Immunization Schedule of the National Immunization Program of the Ministry of Health.