A nurse is reinforcing teaching about the varicella vaccine with the guardian of a toddler. Which of the following statements should the nurse include in the teaching?

A. Aspirin is not recommended for routine use in children due to the risk of Reye's syndrome. B. Live vaccines, like the varicella vaccine, may be contraindicated in children with leukemia or other immunocompromised conditions. C. The vaccine is not made with eggs and does not cause egg allergy. D. The first dose is usually recommended between 12 and 15 months of age.