When you take your kids to get their vaccines, you may need to get an extra dose of the one that prevents chicken pox.
The Centers for Disease Control and Prevention now recommends children under 13 get two doses of the chickenpox vaccine.
One will be given between the ages of 12 and 15 months. A second dose will be given between four and six years old.
This recommendation comes after researchers found that children who got the second dose are two-thirds less likely to get chicken pox.