Some children in my practice have had only 1 dose of varicella vaccine. Is there a problem waiting until the 11- to 12-year-old visit to give them the second dose?

Don’t delay giving the second dose of varicella vaccine. Give the second dose the next time the child is in your office. The recommendation to routinely give a second dose at age 4 through 6 years is intended to provide improved protection in the 15% to 20% of children who do not adequately respond to the first dose.